On February 25, 1964, tlie parties to this suit executed a written contract under which Phillips was to grow broilers for the Co-op during the remainder of the calendar year 1964. Phillips brought this action upon the theory that the Co-op had violated the contract by failing to supply him with a batch of 40,000 baby chicks in early October. Phillips asserted that he was unable to obtain chicks elsewhere until December, so that he lost the profits he would have made upon one batch of chickens. Other facts are stated m our opinion on the first appeal and need not be repeated here. Farmers Cooperative Assn. v. Phillips,
For reversal the Co-op first argues that it was entitled to a directed verdict, on the twofold ground that there was no substantial evidence that it had breached the contract and that Phillips failed to adduce competent proof of the amount of his damages.
There are two answers to this contention. First, our prior opinion became the law of the case and is controlling upon this appeal even though we should now think it to have been erroneous (which we do not imply). United States Annuity & Life Ins. Co. v. Peak,
Secondly, the Co-op moved for a directed verdict at the close of the plaintiff’s case, but it did not renew the motion when it completed its own proof. In that situation the asserted error was waived. Granite Mountain Rest Home v. Schwarz,
Next, it is argued that the court should have allowed the Co-op to prove that under the custom prevailing in the trade a grower such as Phillips was not bound by a contract like the one in issue. That proof was rightly excluded. A custom may be shown to explain an ambiguity, but it cannot be invoked to defeat the express terms of the contract. Batton v. Jones,
Much the same reasoning applies to the Co-op’s final contention, that the court erred in refusing its offer to prove that it was not uncommon for a supplier of baby chicks to go for as much as twelve weeks without being able to furnish chicks to its growers. That testimony was not relevant. By the law of the case the Co-op was bound to supply Phillips with baby chicks. Proof that other suppliers had at times been unable to perform their contracts would not justify the jury in concluding that in this case the Co-op should be excused from doing what it had agreed to do, to Phillips’s damage.
Affirmed.
