Mr Ratburn's Unusually Misbehaved Class

So you think you know Mr. Ratburn's class don't you? Well, see what Nigel Ratburn walks himself into and find out how he reacts. This was kind of a Spontanious Fanfic that was supposed to be about something else but I decided to change it to this and keep it as is. (Summary Update: Sept. 3, 2015: Previously titled "Mr. Ratburn's Unusually Behaved Class" but retitled to fit story.)