How far is too far when it comes to football-related banter?

I'm just curious - I know we're all individuals and have different levels of tolerance. To me, it goes too far when people start mocking disasters like the Munich crash or Hillsborough. To me that's just beyond banter, it's vile. What is your personal limit? I know we are all football obsessives here, me as much as anyone else, but it's a game, and as far as I'm concerned there are limi6ts. Where does that limit lie for you?