Taking their lunch two guy from an office decide to walk through the park. As they are walking they pass and old lady sitting on a bench eating a big slice of watermelon. She is sitting with her legs spread and skirt hiked up so the juice drips on the ground. After they have passed the first guy asks the other, "did you notice I think that old lady did not have any underwear on"? His friend responds, "no I didn't notice but she might be so old she does not realize it, perhaps we should tell her". Turning around they walk back and sure enough she is not wearing any undies. "Pardon us", they ask, "but do you know you are sitting like that and you do not have any underwear on"? To which she answers, "yes I know, but it keeps the flys off my watermelon".