Cost sharing

Dog owners in one condo are being asked to approve a plan to test the DNA of all dog residents so that any dogs not cleaning up after themselves can be appropriately punished. At the GNU Public Dictatorship we are nothing if not fair, which is why we understand the motivations for this policy. Unfortunately, we are also nothing if not against discrimination, which is why we feel that passing the entire cost of this program on to the owners of the dogs is not quite right. Shouldn't other residents pay part of the price to keep their residences waste-free? After all, it isn't just dog owners that are hurt when waste isn't cleaned up, and it isn't just non-dog owners that benefit from a cleaner condo.