A teacher asked the class if anyone knew the meaning of the word contagious.

Little Billy puts his hand up and the teacher says “Billy, you know the meaning of the word contagious?” Billy says “yes Miss, I do!” The teacher replies, “well then Billy, I’d like to see you use it in a sentence” Billy says “ok then, the other day my dad and I were walking down the road and saw a guy painting a 10 meter long fence with a two inch wide brush and my dad said “that’s going to take that cunt ages!”