As a contribution to peace and quiet in general, we have decided not to stock Vuvuzelas - the dreadful plastic horns originally intended to scare baboons, that are making the background noise to World Cup Football matches so tedious.
We don't really need them - we already have lots of things that make noises of various degrees of unpleasantness !
I was going to make a list of the most objectionable instruments and sound effects, but I'd only upset someone. It's difficult to make a nasty sound on a harp, but more or less any instrument can be played or abused in a way that makes the eyes water - and there's a cue for a load of jokes about incompetent instrumentalists.
Anyway, we've decided that 140Db is OTT. Nobody needs it.