Smooshing isn't really all that painful. It just involves putting something smelly like Vick's VapoRub (I used vanilla extract) on all their noses (and rumps-but I wasn't THAT brave) and putting them all into a small confined space for about 15 minutes or so. Mine went into a half blocked off pet carrier. They worked out most of their dominance issues in there. Then, I put them all into their new cage when I knew I'd be home all day to watch them. They went in, checked out the new cage, chased eachother around (I was a little worried) and then went to sleep. When they woke up they were all more or less fine with eachother. Their relationship continues to improve each day. I'm just so happy it seems to be working out! Mo is no longer a lonely guy all alone in his cage! Yay!