I learned a valuable lesson. When meeting your male friends for dinner, please do not order a plate of raw oysters; slurp, lick, chew, and slowly bite the oysters while they watch. Turning the shells up to swallow and lick the inside of the shell is also poor form. Smiling while wiping the oyster juice drippings off your mouth is too much. The raw oysters combined with vigorous eating will cause you to need to check your friend.