to fence or not to fence?!

so we are finding ourselves with no other choice but to build a fence around the house to make sure dogs don't use our place as their peeing corner. i watched the weekend all neighbours enjoying the sun walking their dogs and i could see that none of them really cares where their dog does it's business, the dogs are on a leach as long as the leach can go. I checked the local home depot for pet deterrent and found some chemical that is said to deter the pets for a month. i am waiting for the spring to use that and see if it works. I think what i am against is not the dogs but their owners ignorance and assumption that everybody should love their pets, and we all should put with their pet s!%&. come on!