My Lab Star is a BIG chow hound. And given the opporunity, she would grab at any treat. But, I taught her since puppyhood, that while taking any food from my hand she do it gently; and she does! I can even put a piece of kibble between my lips and she'll gently try to nibble it away with the command, "Gentle". I used many of the techniques already mentioned. I kept a piece of kibble grasped firmly between my fingers or in the palm of my hand, fist closed. She could smell it but was not able to grab it. I would tell her to sit, putting her in a submissive pose and say "gentle," "no biting" and she would use a very gentle mouth to try and nibble it away. I would then gradually open my hand and with time, she would very gently take it from me. Actually, as a puppy, I taught her always to take anything from my hands gently. When she was in the chewing phase (and my fingers were a favorite object!) I would draw my hand away quickly and say loudly "OUCH!!!!!!!" "No biting!!!" "No hurt Mommy." Today, I can take a marrow bone out of her mouth with that command. You['ve gotten a lot of good advice. Let us know how it goes!