You shouldn't referee a sports match you're betting on.
Dean is a soccer referee and has been struggling financially lately.
Dean wants to make more money to help with his finances.
Dean asks his boss if he can referee more games in the near future.
Dean places a large bet on the outcome of the game he will referee and then tries to influence the outcome of the game.
Dean is given more games to work and is able to catch up financially.
Dean's bet is discovered, and he is fired from his job and disbarred from the industry.