When did you last have an attack of the giggles when it was actually quiet important? Or have you had a meet where you noticed something funny about him or her and could not stop giggling
On a health and safety course at a fire station, the whole team got the giggles over something daft and then ended up crying laughing.
One of those times when you just have to catch someone's eye and it all starts off again.
The trainer really wasn't impressed, which just made it funnier.
I laugh a lot, normally at inappropriate moments.
I tend to laugh quite a lot after an intense orgasm, not because it's particularly funny but because it's a pressure relief as I'm coming down.