Comment Expectations (Score 1) 1127
If you are the leader of the team, you set the expectations and the tone for everyone else. Your belief that bad behavior is "guaranteed" dooms your effort to control it. You must make it clear to yourself that nothing inappropriate must be said or done, then make it clear to your team that infractions will not be tolerated. The expectation should be that no inappropriate behavior occurs, period.
Others have already told to you why your attitude will get you sued and that the behavior you describe is immature and unprofessional. Let me just add one more thing: miscommunication is an inevitable consequence of human interaction. By sanctioning any borderline behavior not only are you increasing the risk of someone reacting negatively, but you are leaving yourself without any way to reassure anyone that what happened WAS just a misunderstanding rather than evidence of a hostile work environment.
That being said, I have worked for, with, and managed people of both genders and many backgrounds. Not once did I encounter an environment where inappropriate behavior was exhibited towards anyone. Proper professional behavior should be a given, not an impossible goal to work towards. Are you sure your team has a problem? Or are you seeing your coworkers through your own lense?
Good luck, I think you are going to need lots of it.