Oh yes plenty of rudeness to go around here. And I get what you mean, there's a perfect example in one of the other comments[1] of what can happen when the true intent is unclear.
Although not always easy, not letting yourself feel offended, assuming positive intent, and just walking away with a smile is a guaranteed win under most circumstances.
Well, as in any other country: there exists rude people in The Netherlands as well ;)
So, the next time when someone says "Oh boy, I talked to this Dutch... he was rude!", what are the chances of that Dutch being a) straightforward, b) rude, or c) both?. I find c) happens most of the time.