Little Zoe

Zoe, who's three years old, turned to me with a knock-knock joke...

'Knock knock!' says Zoe.

'Who's there?' I asked.

'Boo!'

'Boo who?' I asked.

'Why are you crying?' asked Zoe.

I'd never heard that one before, so I was dying of laughter. It totally made my day. I love kids, they're so adorable.