Hearing

• a person making "TSK" sounds
• music that is too loud from a person's earphones

People

• noisy ones inside the library
• spoilers
• using/getting my stuff without my permission
• who don't use the words "please", "thank you", "you're welcome" and/or "sorry"
• who have other people to wait on them
• who think so highly of themselves
• womanizers

Seeing

• guys carrying handbags of girls (Eep, girl. Don't bring a bag if you can't carry it yourself.)
• couples PDA-ing
• someone barefooted (I psychologically smell stinky feet)