Because they are naive dolts who know as much about computers as they do repairing nuclear submarines.
It's stuff like spyware that makes me wish that nobody knew how good I was with computers.
-*Phone rings at 2 in the morning* "Hey man, a friend told me that his friend said that his brother said you were good with computers, so can you help me? " (I pretty much imagine him saying "I'll be ungrateful and not repay you in any way!")
- and the sucker I am my mouth is too dry so I can't squeek out a "no" before they start telling me what's going on.
- "Yeah, everytime I get on the internet, this window pops up and has dirty pictures and stuff.. and that's all I know... I SWEAR I didn't do anything.... but you gotta help me or my girlfriend will kill me"
- "Yeah, go to the control panel, then add remove programs and remove everything."
- 'Yeah, SCREW YOU MAN, I THOUGHT I COULD RELY ON YOU MAN!" *hangs up*
I swear this really happend when I was living at college (except for the exact friend of a brother of whoever he was, but I know I didn't know any of the people he named... I don't know who the guy was to this day...)