Best Easter Knock Knock Joke of All Time

I have told my children this joke every year for the past 20 plus years. Telling this joke is an annoying tradition only a parent can appreciate. Share often! Knock Knock Who’s there? Ether Ether who? Ether Bunny! Knock Knock Who’s there? Cargo Cargo who? Cargo beep beep and run over the Ether Bunny! Knock Knock Who’s there? Boo Boo who? Don’t cry, Ether Bunny is okay. He’ll be back next year!