This question is on behalf of a friend of mine but I'm also interested for future reference.
Does anyone have any experience with a dog sleeping mostly inside but also capable of sleeping outside without
too many hassles (barking etc) when necessary? For example if you're likely to be home late or during warm weather.
I'm wondering if it's possible to train a dog to be able to sleep outside in a kennel if/when the occasion calls
for it and not kick up a fuss. The dog in question is a golden retriever.