Sam would have to find a way to either get hold of Bobby, or research on the laptop how to reverse the curse. He’d get a kick out of Dean as a dog, though, once he got used to being tailed by a really big lost puppy while he walked around.
The worst part of it for Dean would be if he goes in the Impala, he’d be breaking his own rule: No dog’s in the Impala, damnit!
Brothers Apart 