Comment Don't make a game (Score 2) 1127
The only thing that will be effective is for the company to have a clear policy, as the law requires, and a clear enforcement mechanism. The only way to do that is with the assistance of a qualified labor attorney local to you. If you haven't done this already, whoever runs your company is insane, and your company is doomed. If you have, then keep with it.
The only enforcement mechanism that works is the same as any other kind of behavior that messes up the work place: counseling, warning, and termination. If you fire the first asshole who gets out of line, the rest will know there are consequences. If you lose the rest of the team, you're rid of people who value their childish behavior more than their jobs, or your job. If that hurts your company