I"ve been watching the videos and reading the posts and I'm wondering something--what do you do to make your furbabies so playful? I got Lucas when he was already a year old and he rarely plays with toys, rarely wags his little bitty tail, rarely seems excited or happy at all. The only time he really gets excited is when I walk in the door after being gone (for a few minutes or the whole day). Then he goes in circles flops on the floor chews on my fingers and jumps up and down. Other than that, he isn't affectionate, either. What am I doing wrong????