Ok, I admit it, the first post was somehow incomplete...
I DID let the other skipper know my intentions,
horn and whistle. My wife signaled him our course, he saw us and did nothing, not even aknowledge he won't change his course.
The other disclousure is that I mean stand on - give way... i'm from Mexico and fail ro remember this terms, sorry for that.
By reporting him I mean I'm trying to make a case with the Port Captain that instruction for boaters, sail and motor alike, is needed at our lake. In Mexico is Port Captain's duty to enforce this knowledge to all registered vessels.
Hope this helps to clarify this..