Do you remember the insanely great Frozen Grand Central prank?
Well, Charlie Todd of Improv Everywhere, the guy that did it, replicated this stunt at a suburban Taco Bell Grand Opening. The facial expressions of the unsuspecting lunchtime crowd when 40 performers just froze mid-slurp and mid-bit are pure gold!
Here are both clips.
and just for grins, here's a copycat event at Trafalgar Square: