Knock, knock.
"Who's there?"
"Ash."
"Ash who?"
"Bless you!"
Knock, knock.
"Who's there?"
"Ash."
"Ash who?"
"Bless you!"
Listen up, buttercup! This is a play on words. "Ash" sounds like when someone sneezes and you say, "Bless you!" It's funny 'cause it tricks you into thinking it's a regular knock-knock, but BAM! Sneaky wordplay!