Any Good Ideas On How To Know Which 'FRENEMY" Is Stealing Goo In Our Town?

I just seriously can't get over how many people are upset about this. I mean really?! This is Halloween! Halloween is all about tricks or treats. The way I see it is we can either treat our neighbor and leave them their GOO, or trick them and take it by double haunting. But honestly it's hard to have fun with it when you have to be afraid of even accidentally tapping an already haunted house for fear you're going to be hunted down and deleted for it. :?