Well, ya might want to set your coffee cup down before you view this one or else you are liable to be wearing your coffee or worse, spitting it out of your nose.

I can honestly say that thankfully, I have never had the need for the rather ingenious invention of "wedgie proof" undies, however several people I once knew could have benefited highly by having a pair or two.

http://cosmos.bcst.yahoo.com/ver/247.1/popup/index.php?cl=4876031