I think I've made a rather stunning discovery.

Cellphone rings have become the digital equivalent of farts.

I say that because I was sitting in a meeting today, and one went off. Discussion stopped and suddenly one individual was met by a very large number of pleasantly offended looks. The offending party then quickly left the room for a bit while everyone else exchanged nervous giggles about the sudden interruption.

Ok, so the fact that the phone was on vibrate and sitting on the table didn't help much.