What's in a Name?

I got to thinking a bit about various nicknames I have been given or assigned myself over the years. So here they are.

Dan
Danny
Daniel-san
Dangerous Dan the Candy Man
Dangerous Dan the Candy Man with the Master Plan
The Mad Professor
Billy (after Bill Gates, I shudder at the thought)
Tang (short for Tangent Boy)

Internet Aliases:
The Real SimDan
SimDan

If I think of any more I'll add them later.

Names added later:
D-Boy