Knock on the hatch.
And what is the person inside to say "who is it "
Because freedom doesn't knock. It rings.
A Pedro leak.
Will I really sink if you take your fingers out
Abort - Bort - Bort!
Bless you!
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)