Why He Do It?

There is a new show I've seen advertised called "Howie Do It", featuring Howie Mandel playing pranks on people - like candid camera. There is nothing really intersting or unusal about this premise except for one thing: in the ads the prank they show has Howie disguised as a waiter and putting his fingers in everyone's food when he brings it to the table. This strikes me as kind of odd since he is one of the most famous Hollywood germaphobes. I'm surprised having his fingers in people's food doesn't freak him out more than the unwitting participants.