We have 2 dogs. A 7 year old Greyhound mix that my wife trained and is quite a good dog. We also have a year and a half old Chihuahua/Terrier mix that is a little crazy! He is a great dog and we're trying to train him but we're going batty in the process. When we first got him he marked everywhere and peed and pooped in the house but since being fixed he has basically stopped that. When we're not at home or during the night we have him in a crate just so he doesn't revert to it (plus we've been told little dogs have little bladders and 8 hours might be too long to hold it) but whenever we do, he just cries and howls. I understand that he doesn't like it, but how do we make it tolerable for him? We have no real other choice. He also chews on whatever he can now. Is it just a cry for attention or is he bored? Any input on how to train a little bottle of fun like this would be VERY helpful!