Cyd, a Regina Pat's hockey fan, had a reputation for being loud and obnoxious to other fans. The Pats management sold her a season ticket on the condition that she must watch her conduct at the games. During one game, Cyd got drunk and offended the fans in her area with her disruptive and offensive behaviour. Management subsequently cancelled the remaining tickets and refunded her for the games she would have to miss. Cyd sued for breach of contract.

Should her lawsuit succeed? What is the main legal issue that supports your answer?