@Trudie, I read your post in a previous thread about border collies. Thank you, it was very interesting.
I have a very specific question. Some dogs have very strange appetite. I have mostly observed it in Golden retrievers and Labs, but heard about other dogs, too. Basically, some of them (not all) share the genes that make humans alcoholics - their food needs to be restricted, otherwise they will eat and eat. They also may eat quite inedible stuff (the most dramatic story I heard was about a dog eating a ring).
My question is about border collies. Have you met any with such peculiarities of appetite - eating a lot, overeating and being quite indiscriminate in their food choices?