What would you do if you met Sub-Zero in an elevator?
The idea is simple, dress up as Sub-Zero from Mortal Kombat, wait in a lift until somebody gets in, bust out some martial arts moves and film their reactions.
Some people naturally react defensively, whilst others are dumbfounded. But, you have to watch until the end as the last guy's reaction is hilarious - poor fella. Some swearing involved, of course, so don't watch if you're averse.