If you drop a piece of food, and pick it up right away, is it safe to eat? When that food is something really good, its easy to understand why youd want to look the other way. A curious scientist wanted to to know the truth, so he went to work to put thishabit to the test.

Paul Dawson, a professor of food science at Clemson University, grabbed some students and you may be surprised by what they found.

The verdict: Food picks up bacteria in less than five seconds. Aw man!

Dawson says eating something off of the floor won't necesserily get you sick, but the chance is there.

Some other bad ideas: Drinking milk from the carton and double dipping (example: when you dip a carrot in onion dip, bite it, then dip the bitten piece back in.)