What would you do if you found a photograph of an overweight man?

I was walking down the street with one of my friends yesterday, and I found a Polaroid of an extremely overweight, extremely shaven man. It only went from his knees, till half way up his stomach, from the front... I've been thinking about writing a disturbing letter to go along with it, and mailing it to one of my friends, claiming to be a secret admirer... anyone got any better ideas?