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Mullroy has complained to the local police about the vandalism in his neighborhood. However, the police have taken little interest in curbing the vandalism, much to Mullroy's disappointment. Determined to resolve the problem, Mullroy invites the local sheriff to his daughter's birthday party and offers him free weekend dinners at Mullroy's family restaurant if the sheriff promises to look into the vandalism problem. Discuss the nature of consideration and contract in this case.