I was just reading old threads and I came across one in the Behavior section about a fish tank and a new cat. It reminded me of a hilarious story about Mitzi when she was young (she is 19 now). We used to have a big fish tank with about 100 fish in it. Mitzi wouldn't bother them at all, she would just stare at them and she never tried to get at them once. Well, one day my dad and brother were up near the hotsprings (natural sulfur hotsprings) and there were these neat looking fish swimming around in the hot water pools. So they captured one (against National Park rules but my dad is notorious for ignoring them when they are this silly) and they brought it home and put it in with our fish. The next day, every single fish was gone except that hot water fish - he had eaten every single one!!!! And the fish was 3 times the size it was originally!! So anyway.......months later our neighbor was going out of town and wanted us to "babysit" his fish for a few months. He said he would rather us take his tank than come to his house to feed them. We didn't think anything about Mitzi because she never bothered the fish that we had....but the morning after we got his fish, we walked into the room and there was the cat sleeping surrounded by misc. fish parts and she had eaten every one of them! Whoops!