We don't need to scare our bullys yet because Maggie doesn't need it and Daddy doesn't seem to have discovered anything.
However, one of our miniature schnauzers, Tia, is SO bad at barking. We live on a corner lot and I SO regret that because she will bark and howl nonstop at a leaf blowing so you can imagine what it's like in summer when people are out walking!! We have a 6' fence all around our yard but if you stand sideways at a certain angle you can see who is outside and it didn't take Tia long to figure that one out!!
BUT ... Tia is a rescue dogs and loud noises like thunder, lightning, fireworks, smoke alarms etc really freak her out and could potentially lead into a week long depression. So I'll give you two guesses what we unscrewed off the ceiling and press to set off when the little "darling" decides she's going to bark for absolutely no reason and totally ignore any calls to come in ...... >.<