Thrift Store Shopping Tip Question6

This question test your sense of humour to find the Thrift Store Shopping Tip that works best for you. What Do You Think of This Joke?

I like to wear a "Do Not Disturb" sign around my neck so that little kids can't tell me knock-knock jokes. "Hey, how ya doin'? Knock-knock." "Read the sign, punk!"

Funny Not Funny