That's my "hobby". I volunteer at a cat sanctuary. And do my own little catch, snip and release program for feral cats
We've also done that for the ferals. At one point we were on a first name basis with the people at the SPCA. There were 17 cats running around, we fixed them all, and we took 7 of them in.
Btw @anniem . You call Bip a "professional cat". What does that mean?
She was always posed. She let you know when you were allowed to pet her. If you approached her otherwise she would draw waaaay back with a somewhat shocked expression. She looked at the other cats with disdain when they were flailing around.