Every suspected Maine Coon I have known has been pretty good with dogs, bar one, but even Pippin eventually forgave my brother - the first of the three cats to do so - for bringing home that jumpy shiny monster thingy (a Lab/Dalmatian? shelter pup who was I think 9 months old at the time), and the only one of the cats to play with the puppy! Pippin is a little, um - skittish - of new things. Were there not copious quantities of yellow fur on the couch, and many pictures/stories, I would never know for sure that he existed!