The five second rule

Do you eat food after you've dropped it on the floor? What if it stays there for more than five seconds? Common “knowledge” will have you believe that if you get to it within the first five seconds, the bacteria hasn't transferred yet, and the food it safe to consume, wile if you eat it after that time frame, you are exposing yourself to bacteria, and therefore potential disease.

This is bullsh*t.  Multiple studies have been conducted using various foods and various floor surfaces, and most of the time the surface makes more difference than the time which the food was left on it. In general, if the floor is dirty and contaminated (and some infectious bacteria, like salmonella, can survive on tile and other surfaces in significant amounts for over four weeks!), you should not be eating it. If, however, you keep your kitchen floor pretty clean, and you wash your food again before you eat it, your body will probably be able to deal with any bacteria that gets into it without making you sick, regardless of whether it has stayed there for three, five, or ten seconds.