Behind the Teacher's Back

Transcripts Act 1
Teacher: "X + Y =... (spitball hits teacher on the back of the head) Ow! Okay, who did that?"

(Ninja points to boy next to him)

Boy: "Wait! What?!?"

Tanscripts Act 2
Teacher: "The war of 18.. (Batarang hits teacher in the head) OW! Who threw this?"

(Batman points to boy next to him)

Boy: "What?!? But I don't even own a batarang!"

Transcripts Act 3
Teacher: "A verb is an action.. (a ray gun shoots the teacher) YAAAAAAAAAAA!!!!!!"

(Alien puts ray gun away)

Boy: "I guess I'll walk myself to the principal's office."