Knock Knock Who's there? 9/11 9/11 Who? I thought you said you would never forget!
Obviously, I was thinking I was gonna get away with it and not have to explain it
A paraplegic
It forgot the lyrics.
Husband: Because when I get round to the front I've forgotten what I was going to say
The pilot.
A race condition. Who is there?
YOU SAID YOU'D NEVER FORGET!!!!