Roscorla v Thomas
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Roscorla v Thomas[1] is a notable case in English contract law which demonstrates that past conduct is not sufficient consideration to support a contract. Past consideration is not a good consideration.
An agreement for the purchase of a horse had been completed between buyer and seller. Following the completion of the contract, the seller made a warranty that the horse was "free from vice". Upon delivery, it was discovered by the buyer that the horse was vicious in behaviour. The buyer consequently sued.