Not sure, but I think it's a fake. Watching that prank for the first time I always thought it was pretty risky for the girl though - scare the bejeezus out of someone in such a tiny space and there's always a chance someone would instinctively strike back.
It happened a few months ago in Poland. Surely the security guy deserves a medal, but the father has to be a total moron. After the parents realised what happened the father try to put the baby on the same ****ing counter, but then the mother intervened 'bitch, no' and took the baby away. I wonder how many kids get hurt because of idiotic parents.