People who chew gum. It's ugly to look at someone constantly chewing and it's annoying to be around them. Not to mention the smell of it, sticky sweet spit smell. Yuk. I will distance myself from anyone chewing gum.
Another one is youth sport teams who award trophies for participation. I wouldn't let my DD accept one, not when her team came in dead last for the season. They lost fair and square.
One more? People who bring their whole family with them when they grocery shop. goodness do you have to have a husband, teens, sister, cousin and mother all walk down the grocery aisle with you?