Just because he wants something in his dish doesn't mean he needs food or is hungry, so ask your vet.
Both the Scooterhounds have eating disorders - Jeffy will only eat when someone is in the room w/ him, Greta will bug you incessantly for her food or post-meal biscuit and then leave it uneaten for hours - we think because she didn't always get enough/fed regularly (rescue dog).
Yes. I think sometimes he's just bored when we're not paying attention to him. I have the treat thingie that he has to work to get the treat out. And we hide his toys and tell him to find them. It cracks me up.
I guess I'd better do some reseach because the vet here recommended the Science Diet sensitive stomach since he was getting gas really bad. Since he is mostly in the house with us we can't stand it. And he will look at his rear end like"what's that all about"