Infernal Tapping

I'm in the library writing a review of this paper and the girl opposite from me has been tapping on the enter key for the last 5 minutes. She has ONLY been hitting the enter key. Over and over and over. If she doesn't stop soon I may have to move. I just have a lot done on my work already. Oh good, she stopped. Now I don't have to kill her. Earlier today this guy just flipps open his cell phone and starts talking on it. Did I mention I'M IN THE LIBRARY?! I stared at him without even blinknig until he said to the person on the phone, "Oh sorry, I'm trying to be quiet because I'm in the library." Did he get up and go to the talking section? NO! Did he stop talking on his phone? NO! Grrrrr.