1. People who push the button at a crosswalk and then run across the street when the "Walk" sign comes on. Pushing the button makes the red light longer so they don't have to run. So the drivers get to sit there for an extra 2-3 minutes while no one walks across the intersection.
2. People who refer to that the thing that separates states from each other as a "border". "The border between Fl and GA". State lines separates states, borders separates countries.
3. People who complain about other people.