Everyone in my church knows at least one convert from Islam to Christianity, and I have heard many a testimony from such people, not only Egyptians but also Tunisians, Algerians, Iraqis, and even a very nice Saudi gentleman (haven't met any Iranian converts yet, though it could be that some of the Iranians I knew were Christians and just didn't talk about it; Iranians in the diaspora tend to be pretty secular, it seems, or at least more so than in Iran, for obvious reasons). It does happen, though in the Middle East/North Africa proper (and even to some extent in the diaspora, depending on the situation of that particular community) they have to be very muted about it to prevent potential problems with the Muslim community. Though I can't speak for Germany, I would not be so quick as to dismiss any convert anywhere. Perhaps there are some who are insincere, but that is likewise true of non-converts, and in both cases their true feelings are known to God. It is better to accept the one who accepts the faith, and if they leave later, it is on them, and of course the doors of the church remain open should they decide to return.
