McClain, J.
In June, 1909, the farm on which defendants were residing as tenants of one Maggie Hamilton for a term of one year ending the 1st of March following, “with privilege of three years if satisfactory to both parties,” was sold to this plaintiff, and two rent notes for $210 each, one maturing September 1, 1909, the other January 1, 1910, were assigned to him as a part of the same transaction. Defendants performed work for the plaintiff, and furnished him some oats and hay, and gave him the use of a barn for horses; and the amount of the account for these items furnished before the bringing of this action in November, 1909, was more than the amount of the first rent note. One of the contentions for defendants was that when action was brought there was nothing due, and the suit, was premature. The defendants’ counterclaim, setting up a cause of action for damages on account of the wrongful suing out of the attachment, was, however, dismissed before the trial, although the question of whether there had been default in the payment of the first note so as to render the second note due and payable under the terms of the lease prior to the bringing of the action was still a matter of controversy under the pleadings. The lease contained a provision “reserving for the first party (lessor), his (her) grantees, lessees, or agents the right to fall plow any stubble during the proper season and to seed the same to grain or grass;” also granting same parties “privilege to go upon the premises at all times and make fences, building, or other improvements, to show premises -to prospective buyers, or for any other purpose which shall not interfere with the rights or privileges of the second party.” Prior to the sale of the premises to plaintiff, Maggie Hamilton had commenced the construction of tile drains through certain meadow and hay land, and this construction was *115continued by plaintiff from June until September with the result, as defendants alleged, that a part of the crop of hay was destroyed, and the use of the meadow for pasture was prevented to defendants’ damage, plaintiff neglecting to fence the ditches made in laying the tile drains, as he had promised, so that defendants were unable to use the meadow for the pasturage of their horses. There was evidence tending to show that the construction of the tile drains was with defendants’ consent, and that various acts on the part of plaintiff in tearing down a small building and replacing it with another, removing shade trees with dynamite, and erecting a small building for his own occupancy near the dwelling-house occupied by defendants, were by defendants’ permission, or at least without objection on their part.
i. Landlord and tenant: ac-TO^eScement‘ I. If at the time action was brought any portion of the first rent note remained unpaid, then there was a default in payment of rent under the lease which would justify the plaintiff in treating the subse- ° d x ^ quent note as matured, and the action was not premature. If, on the other hand, plaintiff had not exercised his election to declare the second note mature for default in payment of the first note until after that note had in fact been paid by allowing defendants credit for labor performed and hay and oats furnished, then plaintiff had no cause of action when the suit was instituted, and could not recover on the second note. Appellant’s contention is that if credit had not been allowed in an amount sufficient to extinguish the first note until it became due, then the second note by operation of law under the terms of the lease became due and payable, and a subsequent allowance of credit extinguishing the first note would not prevent the cause of action being mature under the second note.
It is true that an unliquidated claim for damages or on account does not defeat a cause of action on a *116liquidated claim so as to render the bringing of the action improper. Smeaton v. Cole, 120 Iowa, 368" court="Iowa" date_filed="1903-05-14" href="https://app.midpage.ai/document/smeaton-v-cole-7110450?utm_source=webapp" opinion_id="7110450">120 Iowa, 368; Jones v. Witousek, 114 Iowa, 14" court="Iowa" date_filed="1901-05-14" href="https://app.midpage.ai/document/jones-v-j-c-witousek--co-7109525?utm_source=webapp" opinion_id="7109525">114 Iowa, 14. But that is not the question presented in this case. The court instructed the jury to the effect that if at the time the action was instituted nothing was due on the first note, and appellant had not declared or attempted to declare the second note due and payable under the provisions of the lease, then plaintiff had no cause of action. This we think clearly to be a correct statement of the lawl The lease provided that failure to pay the rent as agreed upon should “mature the notes given for rent and . . . authorize the first party to consider the lease as forfeited without any demand for rent, . . . and he may take possession of the premises without notice, . . . or he may bring action as allowed by law to recover the possession.” Several other acts aside from the failure to pay rent are specified as grounds which should render the notes mature and authorize the landlord to take possession. Construing the whole provision, we think the stipulation was, in effect, that the landlord had a right on failure to pay the first rent note at maturity or upon the happening of the other contingencies specified to elect to declare the second note due and to take possession if he saw fit, but that until he exercised this election the second note did not become mature prior to the date of maturity according to its face. The matter was properly presented to the jury.
2» Same: reservation of rights: construction of lease. II. With reference to the counterclaim for damages upon account of the construction of the tile drains, the tearing down of a building on the premises, the construction of a small house for his own occupancy in close proximity to the dwelling-house occupied by defendants, and the cutting down of shade trees and removing the same by the use of dynamite near the dwelling-house, the *117court instructed the jury that while plaintiff had a right under the terms and conditions of the lease to enter upon the premises for the purpose of making fences or other improvements and erecting buildings, he could not do so “if in so doing those actions interfered with the rights and privileges of the defendant,” and that if plaintiff entered the premises for the purpose of making improvements, and did interfere with the rights of defendant and cause damage to the crops or other property of the defendant, then he would be liable for the damages sustained.
The clause of the lease relied upon has already been set out. The court evidently construed the last clause “which shall not interfere with the rights or privileges of the second party” as relating to the entire reservation, that relating to the fall plowing and seeding and to the going upon the premises at all times to make fences, buildings, or other improvements, whereas we think it should be confined to the going upon the premises “for any other purpose” than the purposes not expressly specified. The rights and privileges of the defendants covered the entire right to occupy and use the premises during the term of the lease, to the exclusion of the-landlord and all other persons. If the reservation was to be construed as granting no rights interfering with this exclusive right of possession and use, then it conferred nothing, for it would be impossible for the landlord to fall plow and seed or to make fences or to erect buildings or to construct tile drains without interfering with the tenants’ rights or privileges, and being liable in damages no matter what care he might use in doing the work. Under the instructions of the court, the plaintiff was liable to defendants for whatever damages resulted from doing the acts which he did regardless of any question of negligence .in doing them. This construction of the lease was in our opinion 'erroneous, and rendered *118improper and prejudicial to the plaintiff, all the instructions given with reference to damages.
3. Same: improvements by landlord: damages: instructions. III. The whole instruction relating to damages' is also objectionable on the ground that it stated declaratively as though conceded by plaintiff or established without controversy that .plaintiff dug the drains and ditches in such manner as caused “great damage” to defendants; that plaintiff drove across the premises in such manner “as to cause great damage to the defendants;” that plaintiff entered upon the premises and scattered dirt and broken tile thereon “to the great damage of defendants under their lease;” that he entered upon the premises and “built a house in such close proximity to their (defendants’) dwelling-house and between them and the highway as to cause great damage to defendants under their lease;” that he cut down and removed shade trees “by the use of the explosion of dynamite near to the dwelling-house of said defendants to their great damage under their lease,” etc. These expressions were used not with reference to the claims of defendants, but as indicating what were the facts to be considered by the jury in the case. It is plain that the court should not have characterized the amount of damages suffered in, these respects as “great,” and- that in other respects not here enumerated he should not have stated that some of the acts complained of were to defendants’ damage, when the evidence was in conflict as to whether any damages for which compensation could be given resulted. The whole instruction was calculated to magnify the extent of injury inflicted upon defendants in the face of evidence. tending to show that plaintiff’s acts were in the main beneficial to the defendants, and all of them without objection on the defendants’ part and many of them with their implied consent.
*1194' AME' *118IV. As already indicated, there was evidence tending to show express or implied consent to many if not all *119the . acts of plaintiff concerning which defendants seek to recover damages. The only reference in the instructions which we can find to the subject of consent is in the one relating to damages in which the jurors were told that if they found the acts complained of were done, and that they did under the evidence “interfere with the rights and privileges of the defendants under their lease,” then the jury should award damages to defendants, “keeping in mind, however, that in certain of the- matters claimed as damages by the defendants it is claimed by the plaintiff that he had permission so to do from the defendants.” This, we think, was a totally inadequate presentation of the claim made by plaintiff in his pleadings and finding support in the evidence that defendants consented to many of the acts for which recovery was sought. Such consent would not merely affect the amount of damages to be allowed for the acts thus consented to, but would entirely defeat any recovery whatever for damages on account of such acts. Consent was an affirmative defense, and as such was not submitted to the jury.
5 Samemeasure V. As to the matter of damages the jurors were instructed that if the doing of the things enumerated by the court as having been done by plaintiff to defendants’ damage or great damage did in the judgment of the jurors under the evidence interfere with the rights and privileges of the defendants under their lease, then they should grant to defendants on their counterclaim such reasonable damages as the evidence showed they had sustained, and “reasonable damages on this claim of defendants will be the difference in the reasonable rental value of the three hundred and twenty acres in question before action of the plaintiff in entering upon the premises and doing the things, if he did do them, complained of by defendants and. the reasonable value of the three hundred and twenty acres after *120the actions of the plaintiff as claimed by defendants in these matters.” It is difficult to see how some of the matters referred to in the instruction could have affected the rental value of the farm. Certainly, the fact that dynamite was used in taking out some shade trees to the terror of defendants could not have rendered the farm of any less rental value than though the shade trees had been removed in the ordinary manner, and the fact that certain chickens were turned out of their accustomed home and perished as the result of plaintiff’s action in doing so would hardly be a basis for finding that the rental value of the farm had been decreased. But on the whole, the measure of damages was put on the wrong basis. Unless he did the authorized acts in a careless or negligent manner, the plaintiff would be liable for the specific injuries" resulting to defendant, and not, as we think, for the decreased rental value. However this may be as an abstract proposition — and perhaps cases might arise in which decrease in rental value would be a proper measure of damage even for negligence which resulted in permanent injury — the instruction was plainly wrong in allowing the jury to consider as affecting decrease in rental value many elements of alleged wrong which could have had no relation whatever to such decrease. The instruction in this respect was misleading, and calculated to prejudice plaintiff’s rights, and should not have been given.
VI. Many objections are made for appellant on rulings as to the admission of testimony. Some of the testimony admitted over objection for plaintiff related to issues which the court subsequently withdrew from the jury with the direction that the testimony relating thereto should not be considered. On a retrial of the case, if it is tried on the issues which were finally submitted, much of the evidence offered and to which objection on plaintiff’s part was overruled will be plainly immaterial. We find no occasion now for reviewing these various rulings. On *121a retrial of the case in accordance "with the rules of law herein announced the same difficulties will not arise.
For the errors already pointed out, the judgment is reversed.