I can't think of any specific instances, but early on I learned the power of having a good comeback. It really bothered me as kid when I experienced l'esprit d'escalier and so I worked on it. Unfortunately, I got to be very good at it, to the point where when insulted or even mildly slighted, a barb would leave my mouth almost automatically. That, combined with my naturally sharp tongue, has resulted in more than a few regrettable interactions. I will admit though, that I enjoyed it for a while, as it usually got laughs when I was a kid. Now, I make a real effort to think before I speak.
You'd like that wouldn't you? But you'd never get that far even in an indie film which is way easier because you'd be too busy delivering pre-emptive barbs of questionable justification based on comically mixed and missed signals, thus detonating all potential interaction on a deeper mental or physical level. This would also probably be a metaphor for two other things.