Double Dipping

Another great one from "Prevention" magazine.

"Double dipping" spreads germs from one chip to another.

Verdict: FACT. In a classic episode of Seinfeld, a partygoer accused George Costanza of spreading germs by "double-dipping"--swiping a chip into a bowl of dip, taking a bite, and then dipping the same chip again. Having settled the 5-second rule debate, Clemson University's Dawson decided to do the same recently with this alleged party faux pas. It turns out that George really was contaminating the other guests: Using Wheat Thins and various dips, Dawson found that a double-dip deposited thousands of saliva bacteria into the dip--and of those, 50 to 100 were later transferred through the dip to a clean cracker, presumably destined for another guest's mouth. Still unknown, however, is how long such bacteria can survive in the dip or if they can actually infect another dipper upon ingestion.
Think about the dip at the end of an evening, gives me the chills...