First, let me introduce to you to the sc, "Bob". We all know he's name, mostly from the complaint forms he turns in. Also, "Bob" is not his real name. So, Bob complains a lot.
Second, the library has a lot of classes, like for computer, knitting, decorating cakes, yoga. We also have weekly classes of conversational "x", like "conversational Hindi," "conversational English". Wed. is "conversational German." The conversational classes are help on the first floor.
So Wed., the class is going on when everyone starts to hear someone nearby having a loud conversation on his cell. One of the librarians involved with the class goes to him and asks him if he can lower his voice or take the call somewhere else in the library or outside. Of course he wants to know why, and he was told it was interrupting the class.
Bob: Well then, you should take the class outside!!!!
Then he starts an arguement with the main librarian who is holding the class (um, not the main librarian, like the manager, just the one doing most of the teaching the German) which involves a lot of finger-pointing in each others' face.
Bob gets banned for the day