Shut the Fuck Up

You are in a library computer lab which is almost completely silent except for some respectfully quiet whispers, yet you decide you should call your friend on your cell phone and talk at an unreasonably loud level. Shut the Fuck Up.

I fail to understand the inconsiderate mindset of people like this. Do they not feel embarrased that everyone in the football field sized room can hear them? or do they not feel just inherently bad about disrupting all the other people who are trying to study?

I had this similar problem before in the SILENT reading room at this library (There are general study rooms, quiet study rooms (just low whispers - cell phones on vibrate) and then there are silent reading rooms (with signs posted that say cell phones are to be on silent or off and there is NO talking or whispering)). Anyways there are usually people who are just being noisy but it is just because of colds or they are moving papers around and the like. But on more than one occasion have i heard every word of a whispering conversation in there and on more than one occasion was someone just sitting there for over an hour texting back and forth with someone with there phone vibrating against the desk every other minute when they would get a text back.

I guess my problem is that i don't know how to address it. I am almost always not the only one present when this inconsiderate misanthropy takes place and no-one else seems to even be thinking about doing anything. I get the feeling that i would be unreasonable, a jerk, a square, or just mean if i would say something - and what would i say anyways? I guess it is a situation though that if i know i am in the right i have to be brave and stick up for my right for a quiet place to study and if people get mad at me or view me as some sort of noise nazi then too bad - I shouldn't value the opinion of those people anyways. Alright so she has gotten off the phone and now is talking with her sorostitute friend at the computer next to her. Ear plugs aren't an option because I need to have my headphones on to listen for the occasional pronounciation of a GRE word - but i will look at the positive - i will be building up my ability to focus.

Update - three students just left in annoyance presumable because of their vacinity to the loud-talking, disrespectful, degenerates.