Michael and I are old hands at this procedure, having trapped, neutered, and released dozens of cats in the past decade. It's a bit of a mission for us. If I'm truly grateful for anything, it's being married to another cat lover with a kind heart, who'll spend the time and money to handle these sorts of issues. It's not an easy job and and it's not cheap, and certainly nobody thanks us for the effort. But, it's the right thing to do, and so we do it. Most of the time the cats like us well enough to stay for dinner, and on occasion, they'll even take the Felidores for walks... or rides.
And they say you can't tame a feral cat.