HELEMAAL MEE EENS!!!
It's not because you hear Dutch that we carry pot or whatever.
I, for instance, do NOT have that stuff on me. And I'm happy with that.
Me and my friends usually bring some for the unlucky people that can't buy it in their own country.
We don't get pissed off when people ask either, why would a question bother us? Just join us and we'll have a blast. It's one big family after all! Also the chance that there is at least some pot near a Dutch flag is pretty high (probably as high as the Dutch people near it are ), so it's only logical, no need to be all pissy about it.