The Giggle Loop explained

Ripped from http://en.wikipedia.org/wiki/Giggle_loop: The Giggle Loop is a state of mind invented by Steven Moffat, the writer of the BBC comedy series Coupling. The idea is somewhat simple and occurs during those annoying moments of silence and relies on incredibly bad timing. Patrick: What's a giggle loop? Jeff: Don't Ask... to know about the giggle loop... is to become part OF the giggle loop! Steve: I think we can take it Jeff: You're not ready for the giggle loop Jeff: Basically, it's like a feedback loop, you're somewhere quiet, there's people... it's a solemn occasion, a wedding!.. no, it's a minutes silence for someone who's died! Steve: Right? Jeff: Minutes Silence, ticking away... the giggle loop begins! Suddenly, out of nowhere this thought comes into your head, the worst thing you could possibly do during a minutes silence is laugh! As soon as you think that, you almost do laugh! Automatic reaction but you don't... you control yourself! You're fine! But then you think how terrible it would have been if you'd laugh out loud in the middle of a minute silence and so you nearly do it again! But this time, it's an even bigger laugh, then you think how awful this bigger laugh would have been, and so you nearly laugh again only this time, it's a very big laugh, let this bastard out and you get whiplash! ... and suddenly, you're in the middle of this completely silent room, and your shoulders are going like they're drilling the road, and what do you think of this situation? Oh dear Christ, you think it's funny!