Dave?

Here is a thorough, although certainly not complete, list of the kinds of people who will call me "Dave" even though I introduce myself as David.

Camp Counsellors
People in Construction
Sports Coaches/PE Teachers
Jazz Musicians
Men between the ages of 37-45 who play fantasy football.

I don't know who Dave is.
Dave wears a backwards baseball cap and cross-trainer shoes. Dave wears old jeans with many pockets. Dave has sandy hair and usually does not style it. Dave wears grey T-shirts with fish on them.
I am not Dave.
I do not know who Dave is.