Almost forgot my #1 peeve. People who don't stay to the right. When walking up and down a two way staircase ( as opposed to a designated one way) or even down the aisles of Walmart - stay to your right hand side. That way all the human "traffic" flows smoothly. I don't think they even teach that in school anymore.
Oh, and people who shove onto an elevator or bus before letting the riders off. Duh, people.
"There ain't no vaccine for stupidity* Maxine