I went to law school with an Eagles fan. Overweight dude. One time a few of us were having beers at the bar, and he dropped a chicken strip or something similar on the floor. He picked it up and said, "Five second rule?" I looked at him, horrified, and said, "OFF THE FLOOR OF A BAR?!?" He shrugged and said, "Yeah, I guess you're right..." I guarantee he was eating that thing if I didn't react so strongly against it. I can't imagine a surface more disgustingly contaminated than the floor of a bar.