My Penny was the same way. She was also found behind a pizza place at about 4-5 weeks old, and was starving. She had coccidia on top of it. She was also VERY aggressive when the other kitties tried to share her bowl.

What I did was feed her, with the rest, in her own bowl. I sat beside her and petted her on the back, talking softly to her. This went on for MONTHS, every night.

And about 6 months later, not only could I take her food away, I could touch it, and so could the other cats. They could even take it away.. She now waits her turn.

Once they learn that they will get fed again soon, they stop thinking it is as important. She could care less about food now.

It is VERY common for kittens to be food aggressive. Don't worry, just work with him.

Most kitties are food obsessive. They grow out of it.

Please be sure to leave dry food out for him always, that will make him feel less protective.

GOOD LUCK! Kt and kitties