,,,the only times I can honestly recall getting bit/ nipped where I wasn't expecting/ deserving of it for pressing on in , were by the healer breeds& women/ girlfriends were involved ,,,( I was a service tech for a private utility for over 11 years ,with anywhere from 3 to 6 customer service calls a day, covering a service area from the nogales U.S./MEX border to north of Winkleman/Kearney AZ. ,,,points West to( Indian res.) Ajo & East to the San Pedro river/north to mammoth az./south to Benson az. ( and all in the same day sometimes), I met all kinds,,,race & creeds with their favoured breeds of dogs,,, never had any problem from the dogs,
( I've had to turn my head away while driving past some apparently illicit white powder bulk unloading operations from Mexican registered produce hauling 18 wheelers a time or two,though)