ok jools... I kinda agree with what you are saying, but back in devil's advocate mode.....
  i try to overtake sensibly most of the time and try to ride within my limits ( I can't do stunts so not an option) Having said that there have been a few times when i have misjudged something and the outcome would make me look like a hooligan to anyone who didn't know better. 
 So where do you draw the line?? 
 Is it acceptable to do stunts if its not in a dangerous place or for an audience? who makes that judgement on what is or is not safe? 
 (not having a go at you here, just trying to provoke a debate 

 )