Mr. Bignuf left his in a surgical glove, at a hospital, while a patient, back in grad school. To be fair, he was dating a certain nurse, and since he was stuck in the hospital for six days, undergoing tests, and she came to visit, she offered him an "under the covers" hand job, and with no better place to "catch it", she chose a glove, rather then a towel (which might be obvious). Mr Bignuf still grins at the memory. How do I know that is a true story, and not one he is making up? Easy...that girl is still a good friend of mine and she is the one who told me first!!!!

So...where is the oddest place you have left your "mark"?