A guy in Phoenix walked through security at Sky Harbor Airport in a Speedo... and was told to leave and come back with pants on.
He has an artificial hip which sets off the alarm every time and ends with an enhanced pat down.
This time, he stripped down to a Speedo and wrote I Love TSA on his back. The alarm went off, and agents didn't feel comfortable giving him the enhanced pat down in just his Speedo. They sent him away and told him to come back with clothes on.