1. Restaurants that fill sodas with 80% Ice. Seriously, I take 1 loving sip and half of the soda is gone because of the mass displacement of the liquid. I'm not going to take the loving thing on a trip through a desert. Put some less ice in, maybe 33% would be good for most people.
2. Kids that need to be excessively disruptive in class because they don't get the material and want attention. Seriously, raise you hand or stay after for help. Don't waste time which I could learn the lesson quicker and maybe even finish a good amount of classwork.
3. People who constantly have to talk about certain overrated mainstream shows like Glee, American Idol, and shows of that nature. It's ok to like it and be individualistic in your way, but constantly talking about it just because it is somewhat popular is really annoying, especially when I don't like it myself.
What gets your gears grinding?