My one cat Joey, he supposed to be neuter. We got him done at the Humane Society where we adopted him from. Only payed $10 to get him done there. The Vet didn't shaved his fur but instead they cut his fur. Ever since he has been neuter, he has never gain any weight. Toby and Sabrina have gain weight after they have been fix. Most cats do. He stills humps a little bit. Is this normal? Do you think they did his neuter wrong? Joey is a longer hair cat? Do you think it will shorten his life span if they did him wrong. Thanks!! Please let me know!!