Knock Knock!
Who's there?
Water.
Water, who?
Water you answering the door for?
Knock Knock!
Who's there?
Gable.
Gable who?
Gable to leap buildings in a single bound!
Knock Knock!
Who's there?
Evan.
Evan who?
Evan you should know who it is.
Knock Knock!
Who's there?
Callas.
Callas who?
Callas should be removed by a podiatrist.