I have to admit I am kind of a stubborn dumb ass sometimes when it comes to germs and bacteria. First thing I did in my tour of Iraq was to eat street kababs and preparing for the worse but I never got sick my entire tour. I brushed my teeth with tap water in China, and eventually drank it straight after 3 weeks. I eat street food all the time in NYC. I believe in building up my immunity, but I'm sure one day it'll come back to bite me on the ass. I like the theory of raw milk drinkers that you can't prevent all germs, but the question is how strong your immune system is. Everyone gets germs and bacteria, but you don't get sick 100% of the time and why not? By the way I am in no way advocating what I do, you need many years of eating garbage to get a cast iron stomach like me.