I didn't use Finn's crate for time outs, but, I've used other rooms where I leave him alone for a minute or so, and, it worked wonders with him. Loud sounds work really well, too, with Finn. I don't know how he'd respond to physical reprimands, because I haven't used them. When he did play bite, I just stop playing with him completely. He doesn't use his mouth on hands at all now. But, i wish we could hear how this dog is doing!