^^^^ Agreed with all of this.I am one of those people that tell it like I see it and I hope no one jumps down my throat for this but.....
if your chickens are in your yard then people need to stay out of your yard and you need to inform the authorities when people trespass!
That being said-if your chickens keep getting out of your fence then that is your fault. If I was being a good neighbor and placed a chicken back into a yard to HELP my neighbor, then I would be upset if my neighbor got snooty and uppity with me for touching her chickens! If you don't want people trying to catch and return your chickens then keep them in the yard. Build them a run and problem solved.
As for trespassers, walking out onto the porch with a rifle (usually unloaded unless we feel actually threatened) has done the trick for myself as well as some of my friends. Then again, we live outside city limits.