Not always , but in this case, I did terminally cull them. This eliminates the chance, even if I were to pet them out, any unwanted breeding. I personally don't like to sell anything I wouldn't want myself and there is just no way to guarantee that they won't breed them. So far I've had two people call me because of "accidental" litters. It's really been upsetting cause they just "had them out to play for just two seconds". I personally don't sell pairs (unless they are show breeders & show quality). They usually go out to buy a "friend" even if I've advised against it. This just ends the chance of that happening.