I threw up a little when I found these on my camera.
While we were on the west coast of the USA, we went to visit the Seattle-based diaspora of the bloke's family. One of them is a shutterbug and she briefly pinched my dSLR to take photos of us. I only just found these after dumping the contents of my memory card onto my main computer.
I'm grateful to have them. Even if they are a little sickening.