I love the excitment of playing with soles while a person is slleping. I've done this to two of my friends mom's sniffing licking and lightly tickling their feet. To this day no-one knows. I even painted a few toenails of one of them to leave as a signature. It was there for long time too, I think she may have liked the thought of it. She said noone has had the balls to "prank" her while she was sleeping in a while. I said yeah a prank, thats it, LOL. The thrill that they could wake up and catch you in the act. I don't know if I would stop or keep doing if I was already caught.