I think if you just avoid buffets thinking you are beating germs and general disgustingness, you are missing the point. Plants that package food have cleanliness standards laid out such as exactly how many parts of insect feces and parts there can be to every part of food. The government has guidelines that allow for so much contamination. Add that to the fact that they only check about 5% of all food to make sure the guidelines are met, and the serving of the food is not the issue. I did a report in my nutrition class three years ago and the filthiest, least checked food is baby formula, f you read what they allow in it and how they actually screen it and how many recalls they have a year, you would vomit. The point is, there are problems everywhere, unless you are going to grow your own food or live in a bubble, you are going to get germs. I grew up in the south, we left food out all day, never switched cutting boards etc. I remember my grandmother re-using grease endlessly and picnics where ham and potato salad sat out all day with flies buzzing and we lived.