The curiosity of a child...

It was the end of the day. The cop parked his police van in front of the station. As he gathered his equipment, his K-9 partner stood inside the van, barking.

The cop noticed a little boy staring at him. 'Is that a dog you got back there?' the lad asked.

'It sure is,' the cop replied.

Puzzled, the boy stared at the policeman and then looked again towards the back of the van. Finally, the boy asked, 'What'd he do?'