While gambling at Prairie Meadows Casino, Troy Blackford became angry and smashed a slot machine. He was banned from the premises. Despite the ban, he later gambled at the casino and won $9,387. When he tried to collect his winnings, the casino refused to pay. Blackford filed a suit for breach of contract, arguing that he and the casino had a contract because he accepted its offer to gamble. Did the casino and Blackford have a contract