Hey...Dogs get the munchies, too.
I had a Lab x boxer x rottweiler (most likely - lab was abou1/2) who lived to be 16 or more. Every once in a while she would Indulge and take advantage of my absence to eat some of my food...and several times she ate more than a half a box of See's chocolates. I worried but never saw any negative effects. She was a bit mischevious - and smart as a whip. She understood EXACTLY what people were saying at all times, could tell when we were speaking about her - even in code. Spelling words like w-a-l-k didn't even work.