I'd like to preface this by saying I have the greatest respect for musicians. The coordination needed for any instrument is beyond me and I have a particular respect for drummers.
They must be incredibly fit and are able to do four different things at the same time, so I feel drummers get a bit of a rough time.
We have probably heard jokes about drummers most of which are fairly poor but I thought this one was quite clever.
Q. How do you know a drummer is at the front door?
A. The knocking gets faster but the they don't know when to come in.
Dave