(verbal farm pasture lease agreement; plaintiffs permitted to graze cattle, harvest hay, hunt and ride ATV’s under lease; parties got into dispute and agreed to terminate lease; settlement agreement allowed plaintiffs to access property to remove cattle, but defendants refused to allow removal of all cattle; plaintiffs filed suit for conversion and breach of settlement agreement; defendants appealed trial court judgment in favor of plaintiffs for $28,000 damages and allege insufficient evidence to support damage award, and no evidence to support defendant’s wife liability under any claims; appellate court found substantial evidence to prove wife’s liability and to support trial court damages award because facts presented basis for rational estimate of damages without resorting to speculation).