Fred: Why did the chicken cross the road ?

Dumbledore: Why ?

Fred: To get to the idiot's house

Fred: Knock knock

Dumbledore: Who's there ?

Fred: The chicken

Dumbledore:

Fred:

Dumbledore: I won't punish you on one condition.

Fred: What ?

Dumbledore: Go tell that joke to Snape

Fred: *sweats nervously*