Because he left a residue at every pole.
A dog that keeps barking up the wrong tree!
A man wears a suit and the dog, pants.
She was losing interest.
They know people will blow them.
He worked it out with a pencil.
They prefer radians.
Because every time he saw a street pole he imagined two pies.
Hint on Cauchy-Riemann theorem) A: Because it leaves residues at each Pole.
They held the telephone wires off the ground.