Go to the improv everywhere site for the lowdown... which includes this fab quote:
"Well, first I thought they had come from the store here, that they were part of the business. “That’s fine,” I said to myself. I saw that they all had red aprons like me… When the first guy came, I wanted to say, “Hey! Give me that bell, and I’ll give you this one!” Then I saw that they were all coming up surrounding me and I said to myself, “OK, what’s going on?” It’s Christmastime, so we’ve got to be merry… If we’re not merry here amongst ourselves, then what do we have to be merry about? But yeah, the whole thing was really nice."Brilliant!