Nora.
Even if you were say, a mouse, you could get out of confined spaces, or get into them. An insect could sneak into places, too. Being a fish could save you from drowning.
Well, that's a bit depressing, but you know, maybe I'd luck out and be a bird or something where it wouldn't matter so much. And I guess a paralysed bear would be cooler than not being a bear at all. I don't know.