Oh...alpha rolling. Another tough subject! (We're hitting them today, aren't we?)
My two cents here:
NEVER, EVER alpha roll a dog unless you are absolutely,without-a-doubt, POSITIVE you can 'win.' Meaning that you can hold the dog there, not get mauled, and phsically prove you are the B-O-S-S. I don't know about you guys...but I'm definitely not positive I could do that w/ my Kodi. (Thankfully, I've never had a need.)
I believe strongly in showing your leadership in the pack in the other ways that Natalya mentioned: you eat first, you sleep on the good bed, you walk out doors first (though my dog trainer made some good points about how this really doesn't show dominance so, of course, all these methods are debatable.) you determine when the dog gets affection, when it gets treats, when it gets in the car, when it gets out of the car...etc. etc.
Course, does all that help when your dog gets in a fight? Thankfully, I've never had to break up a dog fight or handle Kodi in any situation like that. However, this comes back to another topic currently being discussed...dog bites. With all due respect Kapani, b/c our dogs/situations/etc etc are different which means we defininely would have different ways of handling things, but if any dog of mine were in a fight, one thing I would not do is alpha roll him, grab his face, or anything like that. To me, this is putting the decision making on the dog's side at a very bad time. The dog was just in a fight, his adrenaline is flowing, testosterone probably is flowing, and, in my opinion, at almost the worst possible moment, he is being challenged...I think that equals a primo situation where many dogs could blow it, make the wrong decision, and bite. That is exactly the kind of situation I'm working to keep my dogs out of.
However, it seems to have worked in Kapani's example...so it's very apparent to me that dog training is a VERY inexact 'science.' Which is one of the reasons we have chat rooms like this, isn't it?

~Shelly K.