Once the door shuts, he starts screaming to the top of his lungs to the people in the car about about something, some sort of pre-robbery speech. Then says it’s a robbery and pulls out his hand and it’s in a brown paper bag...The punchline being that the guy then claimed to be doing some kind of street theater piece and segued into a spiel for donations to some shelter for urban outdoorsman.
Note to theatrically-minded activists in New York City: If you branch your program out to places like Atlanta or Indianapolis, that would be a splendid way to get your ass shot. If you would like a donation from me, then cut your hair, dress up like a respectable citizen (preferably with a shirt that involves buttoning in some way), and ask me politely. If you jump out of the bushes yelling "Boogety-boogety-boo!" with your hand in a paper sack pointing menacingly at me, I might not get the joke in time.