I really get irritated when people use the appostrophe when it is not needed. Examples: The Knights' rode off on their horses. In this case, the Knights don't own anything... there is just an "s" at the end of the word. The appostrophe is only used to indicate "possessiveness" or contractions. 1.) The Knight's horse ran off. 2.) The Knight's going to be angry. *** One other pet peeve is people who don't capitalize sentences, and people who love to use "fractured spelling:" u r going to make me mad.. Hell I can't even duplicate such illiteracy since it's against my nature. *** By the way, I don't see any sense in a sentence about a person being smart and being in school. You can be in school just because you're a kid, and required to be in school by law. You can be in school and be dumb. You can be smart and not be in school, etc etc.