My personal habits changed a while ago, I was in a Ponderosa in Geneva NY, went to the restroom and someone from one of the stalls finished their business and walked out without washing. I was turned off by buffets for a long time after that.
Now if I do go to buffet, finger foods are first, then I go wash my hands and hit the rest of the buffet. Sometimes I even use a napkin to touch the serving utensils.
I hardly ever get sick anymore, have had a couple of cases of food poisoning, one was an under cooked egg roll at a Chinese restaurant in Leroy and the other was K of C in Geneva.
I did have a rare form of salmonella once as a teenager, put me in Hospital for a week. I figure if that didn't kill me nothing will.