I can see how that could be a problem, that is biting the tires of a tractor. I had a Doberman that would bite the car tires, but she never had any injuries sustained from it. Pretty interesting method to train the dog with.

 I had not thought of this before, but a friend who has two golden retrievers told me last night that he was going to buy several nylon collars for his dogs because his leather collars due to getting wet when his dogs go swimming, have developed a really bad odor. Has anyone else had this problem with leather dog collars?:-O

I think any dog as the ability to be dangerous. I had a Doberman as a kid, and she was quite the baby. However, she was also very protective. I do remember seeing her attack a German Shepherd that she thought was going after me. However, she never bit anyone except in play, and never enough to break the skin. And as someone else mentioned on ...

 Yes, my dog loves his cage as well. It is a nice safe place for him to retreat to when things get a little hectic around the house.

 What a great contest for the sleep foundation to have...a great PR tactic. I checked it out, there are lots of great sleeping pet pictures. I believe you can submit one a day or vote once a day.