try and imagine this

try tapping your long fingernails real quick on the keyboard (got it?)

then think about how annoying that sound it produces sounds like (hear it?)

NOW

imagine hearing that for 2 hours straight in a biological and history psychology lecture

read the below post only if you got it:

YES, it's SUPER annoying...and SOME girl JUST had to do it and was totally oblivious to her surroudings..worst part of all? nevermind if she was typing notes, she was on FACEBOOK!