My husband and I own two of the most wonderful Chipoos in the world. If you have looked around much on this site or read the blogs you have probably come accros mention of them (Lacey & Logan). They are both sweet loving dogs with HUGE personalities. Lacey can be somewhat tempermental at times if Logan is trying to take a toy or do something she doesn't like. She likes to growl at him to let him know to stop, but it is always a playful growl. Logan is such a playful dog. His favorite pasttime is playing fetch. He will bring you the toy and set it on your leg and if you don't throw it in about two seconds he will nudge it or flip it up farther into your lap to be sure you can see it:). If you are too busy to play with him at the moment he will entertain himself by throwing the end of his rawhide bone around the room and boy can he throw it. He has landed it on the coffee table a few times and almost made it onto our counter the other day. If he is not doing that he also like to bury himself under any blanket he can fine. I have read that this is a very prominent Chihuahua trait. I hear a log of bad things about mixed dogs, but I would not trade these two for a million bucks!