1st period freshman year. Me and my friend are taking a pre-engineering class and the teacher is some old probably 60-70 year old fat fuck. (He is really oblivious). Probably a month into the class we are going to start making a catapult. The teacher goes into his office and does whatever and me and my friend get a big ass wooden plank and we throw it up to the ceiling and the plank hits a light and the plank falls down with all the glass that broke. We didn't know what to do so we threw all the glass and the wooden plank under some desk and he never found out