Shows like "Undercover Boss" have become super popular and shown that well known people can blend in with the rest of us (well, if you believe "reality TV"). So Arnold Schwarzenegger decided to go undercover at a Gold's Gym. Watch for yourself:

 

Credit where it's due - cute concept, but if you watch the reactions of the gym members, it's pretty obvious that nobody fell for the ruse. I mean come on, the second he opened his mouth it was pretty obvious.

But, it's for a great cause - after school programs for kids. So, whether anybody was actually punk'd or not, it's all for a good cause.