Hygiene Hypothesis and you

I was involved in an interesting conversation at work the other day about how some of co-workers manage to get out of the bathroom germ free. Some of the ideas ranged from waiting until someone else came in, the classic foot flush, and a delicate dance where you open the door with a paper towel, wedge it open with your foot, then proceed to throw the paper towel into the garbage. Now, while I do wash my hands after using public bathrooms, I've never heard of people getting so worked up over germs, and it brought to mind the idea of the Hygiene hypothesis, so I thought this would be a good time to take a look at it.