I have just bought my son a horse. He was a lesson horse right up to the time I bought him in Decemeber. He is 25 years old. Very gentle on the ground and in saddle. The only vice he has in food aggression. Not towards the other horses but towards the family. He has the common ears pinned nostrils flared tail tensed. Very aggressive looking. If you stand by his food an not let him get it till he backs off he is still holding the pinned ears. If you turn your back to walk away he will bite you. He only tries to bite during feeding time. I need help to try and nip this in the bud before my son, who is 8, gets hurt.