As the thread title suggests, our beloved male lab is steadily becoming more and more obsessed with food. We've had labs for years so are completely aware of this trait of greed but our current dog (he's 8 and we've had him for 4 years) is becoming really worrying.
We never leave any food on any kitchen work surfaces because he is agile enough to jump up and snatch it. Over the last couple of weeks, however, he is trying to grab food whilst we're preparing it. Tonight, he was growling at us when we tried to move him away. I felt scared of our usually docile, loving dog.
Please advise us how to curb this behaviour.