I'm wondering if this is even possible. Could you get scent markers for animals that would scare the hell out of her dog? The same way that deer hunters can get deer urine to mask there own scent, if you could get something like that for a bear or a cougar or some type of predatory animal, you could mark your backyard as close as possible to their property. Maybe even toss some into their backyard when they aren't looking. It would make their dog want to spend less time out back. Like I said, I have no idea if this is even possible, but just about everything else is for sale on the internet, why not bear piss?

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Jonathan

2011 Mazda2
2000 E320 4Matic Wagon
1994 C280 (retired)