I've been paid small change to knock up flyers for school events in photoshop, but nothing larger than £10.
Oh, and there was a time I was an unintentional extra in some detergent (or maybe it was paper towels) ad. It was one of those things where the reps set up a table in the high street and call upon middle-aged mothers to compare two products in front of a camera. Halfway through, I almost wandered absentmindedly between the table and the camera - One of the guys directing the thing mouthed something along the lines of "FUCK OFF" and waved frantically to get me away. I walked back and forth behind the table a few times just to prove a point.
ha
Jam it back in, in the dark.