I'd just like to point out that we should really stop calling war refugees 'guests'. The approach to this issue from some of you is completely wrong: these people are not tourists who decided to come visit Germany for a week, these are people, including many children, who have already survived more horrors than most of us ever will. They are shocked and traumatized and their actions will not always make sense to us. The headmaster here has merely warned that these men and boys, who are absolutely not used to seeing naked skin on girls, may react inappropriately. Given that we have the luck to live in safe countries should make us grateful enough to ditch the mini-skirt for a while and make integration for these poor people a little easier. And you know what? See-through blouses and super short skirts have nothing to do in schools anyway, and Bavaria, being one of the most conservative states in Germany, is surely happy about a reason to make girls dress a little more appropriate.
The overall opinion in Germany is that these people need a chance to integrate themselves properly. That won't happen in a week and properly not even in six months, but anyone who is willing to integrate and wants to stay in Germany will have the chance to do so and will be welcome.