[a bullet flies through the window of the classroom]
Mr. Van Driessen: I hope that shot didn't come from in here! Earl, that shot didn't come from your gun by any chance, did it?
Earl: Nice try, chump! I didn't shoot! Look, no powder burns! Run a ballistics check, I'm clean!
Butt-head: He was aiming at us!
Beavis: He didn't fire. Fire, fire, fire! Heh heh. Fire!
Mr. Van Driessen: Now Earl, is brandishing a weapon any way to welcome visiting scholars from distant shores? I don't think so!
Daria Morgendorffer: There's the kid!
Earl: Hey punk, you shootin' at me?
[Earl breaks the glass of the window and fires his gun out it]
Earl: Mr. Van Driessen don't like people firin' at him while he's diagrammin' photosynthesis!
Mr. Van Driessen: Now, Earl.
Earl: Aw, man.
Mr. Van Driessen: Now you can get it back at the end of the term! Earl, the safety, put on the safety!
[Earl drops the gun into Mr. Van Driessen's drawer]
Earl: I'm sorry, Mr. Van Driessen. I'm sorry!