I would have to say that on of my biggest pet peeves is when someone people bite their nails. When someone sits in class and chews on their finger nails spitting out the pieces after every bite it drives me crazy. I just dont understand the point of chewing on your finger nails. My girlfriend chews her finger nails all the time and I have to keep pulling her hand away from her mouth to get her to stop because she doesnt realize she is doing it. I just dont really see the point of biting your nails,it makes them shorter but thats what a finger nail clippers is for. Whenever I see someone biting their nails it makes me want to go put some mittens on them or something, whatever it would take to get them to stop. Another one of my big pet peeves dealing with finger nails is when someone files their nails in front of me. The sound of someone filing their nails, for some reason, makes me cringe. It is like nails on a chalkboard for me. Whenever Im at home and my mom starts to file her nails I have to get up and leave because the sound just kills me.