farmers castrate pigs as a matter of routine. One person holds the pig up by the hind legs and the other one - zip, it’s done.
Gentlemen, cross your legs before opening this Link.
Normally you are correct. The only problem was she went through a low cost spay/neuter program which requires you to purchase the certificate before you go to the vet. So she paid for a female spay at a higher price than a male neuter.
(SQUEEE x 99 billion)^100/.00000000000000001
Which, in case your high-school math is failing you, would be a VERY big squee.