PostSecret is an ongoing community art project where people mail in their secrets anonymously on one side of a homemade postcard. The best ones are displayed on the PostSecret web site. Occasionally, the sender's secret is that the they have rummaged through someone else's stuff and discovered some nude pictures. A couple of examples are below. PostSecret is actually a pretty interesting site, and is at
http://postsecret.blogspot.com/. They change postcards every Sunday.