Some people are so inconsiderate in computer clusters in libraries. Ok, I'm an undergraduate, but I'm nice I have a friend who dreaded going to the library with... just because he spent the entire time in the silent study area listening to music, having his phone on vibrate on the table, eating sandwiches, crisps, chocolate and sweets and then leaving his rubbish lying around. Same in computer clusters. I did try and hint at maybe taking a break to sit down and eat somewhere else.. but he wasn't interested as he didn't have enough time