Switzerland is pretty cold with most people, whether he has an evil or bad past or not. He never had to deal with such problems, since he's almost always neutral during conflicts. In the past, other countries used to hire him as a soldier because of his great fighting skills. Switzerland is very well organized and pretty smart. Still, he can be a bit mean from time to time. However, you have to make him mad to make him like this, most of the time, he's wholesome.