thanks.. also.. if i may ask.. my dog otto for some reason doesn't want to sleep in his house.. he is only 2 and he passes out wherever.. i've tried placing the brush or a toy in the house.. he doesn't care.. is this a bad thing? i finally just smacked him when he passed out by his food.. he also doesn't want to sleep.. it says he's tired.. but, he just keeps running around like a fool.. what's the deal?