Who's there?

Several times over the past week...

BallFiend: Knock Knock
DeepSpice/Me: Who's there?
BF: Boo!
DS/Me: Boo who?
BF: Don't cry, there's nothing to cry about.

Then today...

Thumper: Knock knock. Don't cry. Knock knock. What are you crying about? Don't cry. Knock knock. Don't cry about it.

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