I would hate to leave my dog in a crate for hours and hours on end. I am lucky to be a homemaker and my dog can be with me most of the time but I would not be opposed to tying a dog out or kenneling if I had to be gone for that length of time. There are more interesting things to see at least than the inside of a crate in a room in the house. Yes, they could get injured outside but the house could catch on fire too and they would burn to death in the crate. There are a million things that "could" happen and we can't prevent them all. I guess we all have different ways of dealing with our animals. We should try to respect each other's views and keep in mind that "Opinions are like ***holes, everyone has one." Now let's all smile and be friends!