I always thought they were assembled with springs, they sure act like it, goofy critters...
I once had one sit perfectly still watching me type for ten minutes, then suddenly jump onto the keyboard and start hopping up and down like a crazed lunetic, then went back to where she was before and sat still to watch me again like nothing happened...(I guess I was supposed to be sharing..)
I didn't know there were wrenches with the Ferret stuff? Always thought it was just the socket/ratchet tools...huh