Knock Knock - Woo

Knock Knock
Who's there?
Woo
Woo who?
I know, it's exciting for me too!

Appliance Store

A blonde woman walks into a store and asks the clerk about the TV in the corner. The clerk says, "Sorry ma'am, we don't serve blondes." Irritated, the woman goes home and dyes her hair black. The next day she comes back and asks again. The clerk again says, "Sorry ma'am, we don't serve blondes." Furious, the woman goes home and dyes her hair red this time. The next day she goes to the store and there's a different clerk there. She asks the clerk about the TV. The clerk replies, "Sorry ma'am, we don't serve blondes." The woman asks him, "How did you know I am a blonde?"  The clerk says, "Because that's not a TV, it's a microwave."

Ladder School

Q: Why did the boy take a ladder to school?
A: It was a high school.