Germs are slow

I like visiting websites and watching shows and reading stories that talk about urban legends and myths. Mythbusters is a great show (especially since they love to blow stuff UP). I get regular weekly updates from www.snopes.com. I am very skeptical about many stories I hear until I get some sort of confirmation.
But I don't understand why these people insist on testing the 'five second rule'. Does anyone truly believe that picking food up from the ground within five (or ten) seconds will mean that it cannot get dirty? People say that when they want to eat the food that just fell on the floor. Some folks are too concerned about germs to consider eating food that fell on the floor for even a second, while others (like myself) aren't usually too concerned.
I think it only bugs me because whoever tests this 'rule' seems to take it completely seriously with no mention of it being a silly thing that people say. It is forcing me to think that I am the only one who says it without actually meaning it. No, no. It's the others who are wrong.

Grasp the Nettle