Gus is almost a year old, and doing quite well! he's about 80-something pounds and still super lean. Lately he's become food-obsessed. By this I mean, if he sees a piece of kibble around the house he'll like, lunge at it as if he's starving or something. he's the same way walking around outside on leash. normally he doesn't pull much but when he sees some food on the ground he just rushes for it. he knows "leave it" and "drop it" but it only sometimes works with food. I'm worried this might be a pre-food aggression sign. He isn't aggressive at all right now, but it's starting to worry me. He also wolfs his food down, even when i give it in smaller portions. He gets Taste of the Wild, about 5 cups a day usually split in two meals.