When I said there were two types of programmers, here's what I really meant:

1. Programmers who touch displays with their greasy, disgusting, bacteria-addled fingers.
2. Programmers who don't.

I am incredibly anal about people not touching my displays. I'm not even going to apologize. If you touch my display, I'll kill you. Displays are for viewing, not touching. Put down your damn sticky bun and go touch your own filthy display. Here's my mental image of everyone who has ever touched my screen: