A whole lot mentioned. Popping gum being the worst! There's a woman at work that does this for hours! I about climb the walls trying to ignore it. Also, people that put "like" in all their sentences for like, every other word!! People that sense you're having a bad day then make comments on it. As if that will make you feel better. People that misuse their Welfare money and other people that deserve it aren't allowed to have it for some reason. Screaming kids when out shopping and the "mother" it's with not doing or saying anything to stop them.