(plaintiff owns two race horses, and contracted with defendant to care for and train the horses; contract between the parties stated that plaintiff remained responsible for all expenses incurred by the horses; defendant claimed that plaintiff failed to pay for care of horses over a two-year period; plaintiff filed counterclaim that defendant breached contract by failing to properly care for and train the horses; trial court ruled for defendant on breach of contract claim; appellate court reversed based on lack of evidence to support trial court judgment).