I'm with you brother. If I speak to a gringo, I am usually just telling them about my actual experiences of living here. Exception is of course DR1. I have my close circle of friends who know the lay of the land and we share "can you believe the nerve of this chica" stories. But that is about it.I used to tell foreign guys (when asked) if you couldn't mess with her or wouldn't mess with her back home you really should think twice before messing with her down here but then I realized it was pointless as common sense appears to be more like cryptonite to a lot of these folks.
Now a days the only gringos I speak with down here on a regular basis are the ones who post on DR1 so no ones really asking.
Life teaches you a lesson repeatedly until you learn it. If there is a financial cost, that is tuition.