Respected Public Figure: "Ok, ok, I get the joke, take down the fake sign."

Volunteer: "This is real. Would you like a free introduction to building your own noninvasive mind control device?"

Respect Public Figure pauses.

Respected Public Figure: "Seriously? No way. No way could you mind control me publicly, right here, showing how. You'd get tortured to death!"

A local street kid, sitting by the door and eating a sandwich, takes something out of their backpack.