And about crate training............
Dogs like dens. Their own place, a safe haven. Whether its an actual crate, a spot under a table, a corner in a room, dogs want a place that's enclosed on three sides.
If you look upon a crate as a "cage", you will have a difficult time. If you look upon a crate as his "private space" and never use it as punishment, which gives it a negative association to the dog, he will love his crate. My dog has free run of the house (he's 5) and usually sleeps under the desk in the family room when we are in there. Sometimes, for whatever reason, he just wants to sleep in his crate and be left alone. It signals to our poodle that she needs to leave him alone because he is in HIS space. My dogs are in their crates if we go somewhere. It's a wonderful tool in training, it's a safe place for them when you are not there to keep an eye on them...........it's not a BAD thing unless you make it a bad thing!