They would be really p.ssed off! They can't take anything and get mad quickly, and start to shout nasty things and so on. Their Dutch is so bad, it really funny. Even though most a born here.
http://www.pim-fortuyn.nl/
Has got an English part, but the muslims never go there. The one that is left (the others left, I wonder why) only posts at the 'multiculture' part. He usualy posts about how great islam is, or that the koran is scientificly correct.
He did 7 years of koran school, but does not know anything else, and that's why he loses in the discussion on science.
They get their stuff from the standard pro-islam sites, and never think for themselves. They go out to convince people. But he misses the point. He claimed islam did not discriminate against other believes, but after I confronted him with some sura's and ahadith and he found out I was Christian, he told 'the Jews were the enemy of islam'.
That kinda people you find on the normal forums.
On their own forums you find the 'Osama is my hero' people. It's good you don't speak Dutch. What they say is not something you'd like.
Have no fear, I would not lose my cool with those Mohammedans. Rather, I would goad them to lose theirs. I would also spend a fair amount of time explaining how it is only a matter of time before the deportations commence. :)