Out, damned spot! Out, I say!"*
An English sleep dog.
A person who stays up all night wondering if there is a dog!
Just the standard two, but I'll be damned if I know how they got in there.
Not enough cement EDIT: Okay thanks for pointing out that I messed up the wording but the joke is supposed to be the funny part
God demi
The Carpet store
He wanted to see the floor show!
Shakespeare
Because he can't aim steadily