I absolutely, positively hate:
The sound that my alarm clock makes before it goes off in the morning. Right before my music starts playing, my alarm clock makes this kind of "click" sound when it turns on. It doesn't bother me that much when I hear it on my actual alarm clock. But when I hear a sound throughout the day that sounds anything like it, I automatically get an annoyed feeling inside. It does something to my like, brain that just sets off an automatic annoyment (I know that's not a word but I feel like it's perfect for what I'm trying to say) I don't get it! Am I the only one who get's that...?