I know how that goes my cocker spaniel Harley always steals the fish food and chews up the cans and eats all the food. He does this all the time and I hide it everywhere and he always manages to find it. He has never gotten sick from it.
I have also found that the flake food he loves to eat and lick them out and they start to stink after he does it.
I have also found that the flake food he loves to eat and lick them out and they start to stink after he does it.