What's wrong with having a dog to scare people away? As long as it doesn't actually bite or act aggressively toward people who aren't bad guys.... isn't that what dogs are for?
I kind of suspected you were not meaning that you wanted to
seriously frighten your neighbors. I don't know why people take everything so literally.
That said, I think your idea of a Doxie or Chi is a great one. I also think a Poodle might be a really nice and easy dog to own. (as long as it gets plenty of mental and physical exercise and plenty of early socialization) That is definitely my next dog if I get another dog. (or a Lagotto) Smart, easy to train, willing, spirited, beautiful gait, athletic, not tending toward dog aggression and a fun dog to do most anything with. And that wonderful hair! Or as someone mentioned, maybe an Airedale. I certainly adore my Chihuahuas...a great little breed.
I also can't tolerate this rigid intolerance for mistakes when we're all human and this mob-style criticism that is so common on this forum. It's rude, counter-productive, and incredibly inhospitable. And to imply that someone else doesn't love his dog genuinely, is wrong on so many levels. How does anyone know what someone else feels? Actions? Someone might take actions that aren't wise or are careless, but that doesn't necessarily equal a lack of genuine love. Who's assessment of love are we obliged to use? I never got that from the OP, that they weren't broken up over losing their dog.
They didn't get much time to find him a new home...24 hours. And yeah...I'd be pissed too if the neighbor wouldn't keep it between us rather than having to bring in the authorities when it really wasn't warranted. He (she?) was NOT pissed at the neighbor for being upset and asking for the vet bills to be paid.
So, I hope you will stay and ask questions when you need help. There are people who like to help with training advice and other matters. I'd say the majority. And also just to share and let us know what you decide, show pictures..whatever.
It wouldn't hurt to wait a little bit at least, just to give your mind a rest after losing your dog. Then you can re-evaluate better probably and make better choices. Best wishes.