Yes, not only does Dublin harass poor Gus, but he also does everything he can to eat Nugget's bowl of food before she gets a bite.
I swear, the moment I walk off the porch his big paws are up on the counter and he is sniffing for her bowl. This had to stop and in all my attempts to move Nugget's bowl or try to block Dublin from getting to her bowl, Dublin would always manage to make out with a snack.
The other day I decided to put up a shelf just wide enough for two bowls and a small cat. It is about 5 and a half feet off the floor and requires Nugget to do some jumping (but cats are good at that) and so far has prevented Dublin from finagling a bite of Nugget's meals.
I promise that Dublin is fed and that he is fed well, but I do know he has some stiff competition when it comes to who eats the most. Ellie has always been the first to the food trough and now that Gabby is around (and giving Ellie a run for her money) Dublin has two competitors in the arena.
Hopefully, my shelf solved Nugget's problem, now I will just have to figure out how to make Dublin more protective of his dinner plate.