The Fondue Fork Ceiling

One of my roommates has taken an interest to throwing fondue forks into the ceiling. I don't know why he draws so much pleasure from this simple little task. He grabs a fondue fork in each hand and yells Spider-Man in German right before he sticks them into the ceiling. If our landlord notices it, then I'm going to make him take it out of my roommates cut of the security deposit. I don't even understand why my roommate loves to do this so much. I think he might be mildly retarded. I mean, who does something like this? It doesn't make any sense. I wouldn't mind it so much if he wasn't destroying property. When he gets a few beers in him, he turns into Steve-o from Jackass.