OPINION
Appellants-plaintiffs James and Lisa Cunningham, individually as parents and as next friends of Justin Cunningham, a minor (the Cunninghams), appeal from the trial court’s grant of summary judgment in favor of ap-pellees-defendants Bakker Produce, Inc., Andy Dobosz d/b/a Andy’s Tree Service, and Timothy Magurany d/b/a Maggie’s Tree Service (collectively, Bakker). Specifically, the Cunninghams argue that the trial court erred in granting summary judgment where there are genuine issues of fact regarding the applicability of the Indiana Recreational Use Statute 1 (the IRUS) and its exception for attractive nuisances. Furthermore, the Cun-ninghams argue that the trial court erred in striking the two affidavits filed in opposition to the motion for summary judgment, and in finding that the Cunninghams’ memorandum in opposition failed to sufficiently cite to the affidavits for the purpose of satisfying Indiana Trial Rule 56(C).
FACTS
The facts most favorable to the Cunning-hams reveal that Bakker owned a parcel of *1004 unimproved land in Griffith, adjacent to its business premises and near a residential area where the Cunninghams lived. In August 1995, Bakker retained Magurany and his tree removal service to remove limbs from a tree on the unimproved property, and directed Magurany to “cut the limbs and to leave them where they fell.” Record at 376. The limbs were eight to ten feet long. R. at 371. Bakker intended to remove them but did not do so for approximately one week because he was busy. R. at 373. On September 2,1995, a group of children went to the property to play baseball, as they had in the past. The group consisted of the Cunningham children, Erick, age 13; Jason, age 12; Josh, age 8; and Justin, age 6; as well as a cousin, David Nowack, age 12. The boys discovered that one of the limbs was left on the base path that they traditionally used. Two of. Justin’s older brothers, Erick and David, attempted to remove the limb, and Justin attempted to help. The boys warned Justin to stay away because the limb was heavy. However, Justin slipped and fell underneath the limb, which then fell from his brothers’ arms, fracturing Justin’s skull. Justin subsequently developed meningitis, which resulted in permanent deafness in both ears.
The Cunninghams brought a personal injury action on July 31, 1996, and, on May 12, 1998, Bakker filed a motion for summary judgment, alleging that the IRUS shielded Bakker from liability. In response, the Cun-ninghams filed a memorandum in opposition to the motion for summary judgment, including two affidavits. In the first, Dr. Beth Rom-Rhymer, a psychologist, attested to her credentials and stated that a child of Justin’s age could not appreciate “the danger associated with the movement of heavy tree limbs.” R. at 430. In the second, Dr. Caskey, who has a Ph.D. in “park and playground plánning, safety, construction, and operation,” R. at 441, testified that debris such as heavy tree limbs are commonly removed immediately after being cut down because of the particularly dangerous threat which they pose to children. R. at 442. Bakker made a motion to strike the affidavits, asserting that there was no foundation establishing the two witnesses’ credentials in the appropriate fields.
In its October 1,1998 order, the trial court granted Bakker’s motion to strike the affidavits of the Cunninghams’ expert witnesses and granted summary judgment to Bakker. The court found that Justin was a licensee “at most” on Bakker’s property, that Bakker was thus protected by the IRUS and that the attractive nuisance exception in the statute did not apply to the case. R. at 480. The trial court further found that the Cunning-hams’ memorandum in opposition to summary judgment failed to cite to portions of the affidavits with adequate specificity to satisfy the requirements of T.R. 56. The Cun-ninghams now appeal from the grant of summary judgment.
DISCUSSION AND DECISION
I. Standard of Review
When reviewing a decision regarding summary judgment, this court stands in the shoes of the trial court.
Smith v. Standard Life Ins. Co. of Indiana,
II. Applicability of Recreational Use Statute
The Cunninghams make several arguments against the applicability of the IRUS which formed the basis of the trial court’s grant of summary judgment. First, they argue that the statute does not protect landowners from suit regarding injuries caused by their own negligence, but rather protects them from the acts of third persons. Secondly, the Cunninghams argue that the children’s use of Bakker’s field to play baseball was not an activity similar to the statute’s listed uses, “hunting, fishing, swimming, trapping, camping, hiking, sightseeing,” and, therefore, the IRUS does not apply here. Thirdly, the Cunninghams argue that, even if *1005 the IRUS does apply, there is a question of fact regarding the applicability of the attractive nuisance exception.
We first note the provisions of the IRUS:
(d) A person who goes upon or through the premises, including eaves, of another:
(1) with or without permission; and
(2) either:
(A) without the payment of monetary consideration; or
(B) with the payment of monetary consideration directly or indirectly on the person’s behalf by an agency of the state or federal government;
for the purpose of hunting, fishing, swimming, trapping, camping, hiking, sightseeing or any other purpose does not have an assurance that the premises are safe for the purpose.
(e) The owner of the premises does not:
(1) assume responsibility; or
(2) incur liability;
for an injury to a person or property caused by an act or failure to act of other persons using the premises.
(f) This section does not affect the following:
(1) Existing Indiana case law on the liability of owners or possessors of premises with respect to the following:
(A) Business invitees in commercial establishments.
(B) Invited guests.
(2) The attractive nuisance doctrine.
(g) This section does not excuse the owner or occupant of premises from liability for injury to a person or property caused by a malicious or an illegal act of the owner or occupant.
1.C. § 14-22-10-2.
A. Does the IRUS Excuse Landowner’s Own Negligence?
Taking the Cunningham’s contentions in order, we consider first the argument that the IRUS does not protect landowners from liability for their own negligence. Specifically, the Cunninghams point to the statutory language stating that a landowner is not liable under the IRUS for “an act or failure to act of other persons using the premises,” and assert that the IRUS thus does not protect landowners from their own negligence.
The purpose of the IRUS is to encourage landowners to open their property to the public for recreational purposes free of charge.
McCormick,
Here, the facts compel the conclusion that the acts of Justin’s brothers, third persons in relation to the victim and the landowner, caused Justin’s injury. Nothing in the record suggests that Justin played upon the limbs left on the land by Bakker and sustained his injury in that fashion. If there were any such suggestion, we would consider the duty toward Justin which Bakker would owe. 3 Instead, the designated evi *1006 dence demonstrates that the two oldest Cunningham siblings decided to lift and remove a limb so that they could play a game on exactly the same area of the lot which they had used before. R. at 288. They recognized that the limb was heavy and warned Justin away from it as they lifted it. R. at 29, 312. As Justin began to move away, he slipped and fell; at the same time, the limb slipped from the older boys’ hands and fell on top of Justin. R. at 55-60, 293-94, 29-31.
We do not want to minimize the very unfortunate injuries suffered by Justin, a boy only six years of age. However, it is precisely liability for these types of tragic events from which the land owner is protected under the IRUS. Bakker tolerated the public’s .use of his vacant lot, and it is precisely this sufferance which the IRUS was designed to encourage.
See McCormick,
B. Whether Baseball is a Purpose Covered by the IRUS
The Cunninghams next contend that baseball is not an activity in the same category as “hunting, fishing, swimming, trapping, camping, hiking, [or] sightseeing,” which are all the activities explicitly listed in the IRUS. They seek to distinguish baseball from the listed activities by arguing that the listed activities are non-competitive sports, carried on in rural areas. Appellant’s brief at 18. Furthermore, the Cunninghams state that baseball is an “organized group activity which one cannot play alone.” Appellant’s brief at 20.
Our supreme court has held that, where we must determine the meaning of the phrase “for any other purpose,” found in the IRUS following the specifically listed activities, we apply the principle of
ejusdem gener-is,
which maintains that “where words of specific and limited signification in a statute are followed by general words of more comprehensive import, the general words shall be construed as embracing only such persons, places, and things as are of like kind or class to those designated by the specific words, unless a contrary intention is clearly shown by the statute.”
Drake by Drake,
Case law indicates that the phrase “any other purpose” in I.C. § 14-22-10-2 embraces boating.
See McCormick,
If we were to accept the Cunninghams’ argument, a camping trip during which the participants held an impromptu baseball game would yield the following: the owner would be protected by the IRUS during the camping phase and yet not protected when the same licensees on his land stepped up to the plate. Surely, the principle of ejusdem generis does not require us to split categories so finely or so arbitrarily. We can only conclude, on the basis of case law, that baseball falls into a category with other outdoor recreational activities such as sledding and boating, and that the IRUS thus applies to the case.
C. The Attractive Nuisance Exception
Finally, the Cunninghams contend that the IRUS’s exception for the attractive nuisance doctrine applies to this case. The attractive nuisance doctrine recognizes that a child may be incapable of understanding and appreciating the dangers which the child may encounter on a landowner’s premises.
Carroll by Carroll v. Jagoe Homes, Inc.,
In the instant case, the condition at issue is limbs lying in a field. It does not matter whether the limbs fell or were cut down because the attractive nuisance doctrine does not apply to either natural or artificial conditions found in nature.
Kelly,
II. Stricken Affidavits and Pleading with Specificity
The Cunninghams next contend that the trial court erred in striking the affidavits of the two expert witnesses which they had called upon. Dr. Rom-Rhymer stated in her affidavit that a child of Justin’s age would not appreciate the dangers of lifting heavy limbs. R. at 430. Dr. Caskey stated in his affidavit that heavy tree limbs should be removed because of the dangerous threat they pose to children. R. at 442. However, in light of our discussion above, we need not review this issue. Our conclusions of law render irrelevant the arguments in both affidavits. Therefore, the trial court’s ruling is at worst harmless error.
Likewise, the issue of whether the Cun-ninghams cited to the record with sufficient specificity is moot, given our analysis, as the designated evidence fails to support their substantive contentions. In summary, the undisputed facts in this case demonstrate that the IRUS applies to protect Bakker from liability by the acts of third parties. To the extent that Bakker had any duty to Justin, a licensee, Bakker fulfilled the duty. The limb which the boys on the lot attempted to remove was a condition commonly found in nature and, thus, the attractive nuisance exception does not apply. For all of the above reasons, we find that the trial court did not err in granting summary judgment.
Judgment affirmed.
Notes
. Ind.Code § 14-22-10-2.
. In Drake, the supreme court interpreted I.C. § 14-2-6-3, which was replaced by I.C. § 14-22-10-2 in 1997. For the purposes of review in this case, there are no meaningful differences between the two versions of the IRUS.
. Even if Bakker owed a duty to Justin, it would be defined by Justin's status as an entrant upon the land.
See Estate of Pflanz v. Davis,
