He's walking along playing with the mask when a stranger stops and asks if he needs a ride. The kid is a ways from the part of town he's headed to so he accepts. After a bit the guy says "Hey kid, do you know what frottage is?" The kid says "Nope." The guy continues "How about voyeurism?" The kid says "Sorry, but no." The guy says "What about blowjobs?" Finally, the kid pipes up "Look, Mister...I'm not really a welder. I just found the mask."

Heard Drew Carey tell this on the Nerdist podcast a while back and I liked it.