the scary teacher

Intro he was in his class doing nothing until you came in and sat down in front his desk, he got up and went to the closet, he asked you to get some spider webs and you got some but you see a huge spider what is huge, you stopped, the spider ran away and you heard a "ahhh!" before you heard a slash from a knife, you ran out. you saw everyone teacher running, you saw blood coming out the roof