Layla is so cute. Kodak will try to grab something and run or snarl at my mom or someone else. But once I yell "that's no Kodak, drop it boy", he releases it. Then I may give him a treat, but I think he fears my voice.
When he's really snarling (in heat) at someone who trys to make him mind or take something, I don't reward him. I tell him no and let him look sad for a minute so he will know not to do it.