I found a stray kitten.  I called the humane society and asked, do you have some kind of voucher program? They said yes.  I went and got a voucher, and made an appointment with my vet.  I had my new kitten spade for free.  It was that easy.   An incentive to kill?  I've heard that argument, about how doctors have an incentive to keep people sick, or a police officer has an incentive to get people to speed and not wear seat belts because it brings in money.  I don't think that's fair.  If a new contract is issued that creates a disincentive for suppressing cat populations, I'd have to ask that a population study be conducted to determine how many feral cats we now have, how many we need to kill to keep the population from growing beyond an acceptable level, and a thorough opinion survey to find out how many residents quietly, politely, and with good reason agree that cats have to be managed for public health--it's a civic duty.  I stand with the humane society!