Bless you!
That is impossible. Opportunity doesn’t come knocking twice!
She had no arms Knock knock. Who's there? Not Sally. What did Sally get for her Birthday? We don't know, she didn't open it yet.
Swim down and knock on the hatch. (In Sweden we have a running tradition of telling jokes about stupid norwegians. They do the same about swedes)
Because whenever one started up, the big blades would go "wop...wop... wop" and the little blades would go "guineaguineaguinea".
I didn't sneeze !
