It's not nice to do bad things to your friends.
Ken is at a party with his friend Pat, and his Pat is passed out on the couch.
Ken has to decide what to do to his friend.
Ken wakes up Pat so that no one can take advantage of him.
Ken grabs a sharpie and draws a penis onto Pat's face.
Pat feels grateful for Ken, because he knows someone would've screwed with him.
Pat feels embarrassed when he wakes up, and he knows Ken did it.