Only in NYC

There is an improve group based in NYC, called Improv Everywhere that does random things for reactions or as they say 'organized fun'.

I really love the one they have titled Frozen Grand Central. You can click on the link to watch it courtesy of You tube.

There are plenty of other comical public performances including the tuxedo clad bathroom attendant at the McDonald's in Times Square, which you can see on their website.

They also have a large group of red heads protesting Wendy's fast food restaurant from using a red head as a logo. During the red head subway ride one of the 'agents' as they say, was working as a 'subway entrepreneur' selling squirts of sunscreen for $1 so those with ginger hair wouldn't get burned. The reactions of the other commuters is priceless.