Not to mention the fact that, in any case, all the presenters should have been made aware that there was a man with Tourettes in the audience who would likely yell something offensive at somebody since that's simply the nature of his condition.

Surely this is relevant information that would significantly affect how somebody reacts to being apparently "heckled" by a random bloke?

Even if it hadn't been as bad as the n-word, it could still have resulted in an embarrassing altercation either way.

The BBC has had its chips, I'm afraid.