Maybe it's only me. But if I were to walk into that particular place I would start looking for the wires and the magnets as it were. Only truly gullible people would fall for something like this. And I'm not one of them.

I hate pranks. Hate them. There's usually an element of cruelty behind any prank and I find that hard to get past.

It's not even a real prank--many, if not all, of the "marks" are actually played by actors.