We have a dog down...

Ok, well, it's not stopping him that much, but he's definitely milking his 'injury' for everything it's worth. He sits around with his paw hanging in the air:

...because he has a toenail that's cracked. He still runs around most of the time, but when he's not running around, he just sits there with his paw hanging in the air, shooting you a look like "Oh, jeez. I'm hurt so bad! You better pet me!! LOTS!!" Crazy dog!!