What Are Your Pet Peeves?

I guess this is a pet peeve of mine. . .but, if I am doing business with someone who has dirt under their nails--I hope they are my mechanic, or other similar laborer. There are a few professions where people are going to have dirt/grease/grime under their nails and then there are the professions that should NEVER have dirty hands:1. Healthcare workers

2. Food service employees

3. Bank employees

4. Hair Dressers

5. Anyone who is touching my body or my food

Other offenders on my "pet peeve" list: smacking, people who honk too much and tailgate (that makes me sound like I drive like a Grandma), and people who are just flat out MEAN.