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.