Here's the opinion where he goes after a twelve year old girl who ate a franch fry in a Metro station.
In the opinion, even he recognises that the situation sucks all around but says he has to go with the way the laws are written. You can't ticket a kid, you can only arrest them. And it was a zero-tolerance law. (Are zero tolerance laws EVER a good idea?)
But we at the Chaliceblog have never flinched from taking the cheap shot, so I'm posting it anyway. Tell all your friends.