Henry got ahold of Polly's catnip-filled spider.
I don't know for sure if catnip has the same effect on dogs as it does on cats, but Henry's actions tell me that it does. First he rolled around on the loveseat with it.
Then he took it to the floor and 'killed' it.
When Shea took it away from him....
...sat up and begged for it.
He's got it now, as I write this. He's laying on his back on the floor with it held between his front paws, chewing it.
Does anyone know if catnip affects dogs?