Short-term Family Member - Coco

　　I met him after Emmy's leaving party (in Plush). After getting off from the texi, don't know where he came from, and don't know what kind of attraction I have, anyway, he just decided to follow me all the way home...(maybe he knew as long as he followed me, then he could get some food...or...it's because I look like a walking-pig?? @_@). And...because he's a really funny dog(I'm sure you can see it from his lying pose), and he knows how to make others like him, my parents love him almost at the first sight.
　　Not just his lying pose, the way he gets along with my cats is also funny. Actually, he is very chicken, but he always likes to aggress my cat. Besides, he always chose the wrong one - Arnold, the meanest cat in my family(if you don't believe, check this pic:http://www.pixnet.net/displayimage.php?pos=-8364668)! Therefore, he's got a few cat-paw-slaps. Luckily, because of his cowardice, he didn't get as many as "Bubble" did (It's another stupid dog, who'd always like to show Arnold his friendship, but Arnold never gave it a shit, but a barrage of slaps). After he knows Arnold's slaps are too hard to handle, he didn't get any closer to Nold without us as a company.
　　But....why he's just a "short-term" family member? Because after a couple of weeks, he just left home and never came back again. We're all pretty sad about that. But the most interesting thing is....after another while, my mom just happened to meet him and his "real" keeper on the street. My mom was surprised seeing him, so she called his name right away, and that man was surprised, too. He asked my mom why she knows his dog's name, and my mom told him that he'd stayed with us for about 2 weeks, but one day he went out and never came back. On hearing about this, Coco's real keeper bursted into laughter and told my mom: "Oh, he's always like that, go somewhere for a few days and then come home himself. This time, he stayed outside of home much longer than before."
　　Coco's keeper, is this really not your trick to save the money for his food??