My son has about 12-14 cats. They are(were) feral kittens he brought home from the place he works. I think they realize who their benafactor is. When he wants them outside, he just opens the door & says "OUT". They all go. Well, one is kinda sneaky. I wouldn't have believed it if I had not seen it. Also, I've never seen them fight. All have been to the vet for the appropriate operations.This has been going on for about 15-16 years. A few have passed on & been replace, but I think a few of the original mob are still alive. I'll have to check the next e-mail.
Bob S.