There are plenty of French, Dutch, German and French pilots kicking around EZY to whom Dortmund is doable from their preferred home. Therefore I can't see too many if any people being compelled to go there.
Not that I know the figures but thats the crewroom consensus.
Not the worst part of the world to live in if you did have to do a stint there though.
Cheers
WWW
ps Oh, and Belgian pilots, lots of Belgian pilots.