This doesn't totally relate to history, but the ignorance behind it is amusing enough. In Junior High during our Civics lesson we looked at the online database of Finnish names over the past century. The teacher picked someone called Muhammed and asked us how was it possible that an Islamic name appeared in Finland in 1902. Here's the discussion that followed:

Someone: What, there were Somalis here?
Me: No, it's most obviously a Tatar name.
Teacher: Yes, it was a Tatar name. They were brought here by the Czar to quel the unruly provinces as elite troops.
Someone else: What, the Somput? (Somppu is derogatory term for Somalis, more or less like nigger)
Third someone: Yeah, I bet they were biological weapons.
*Whole class starts laughing frantically*

It probably sounds only racist and ignorant but at the time it seemed just incredibly absurd to me. I laughed with everyone else, but more at the absurdity of the comments. Then I experienced this great surge of feeling superior in comparison to almost everybody else there. It was a scary feeling. Almost as scary as the fact that I was going to an international school where like a fourth of the students were either foreign or had a foreign parent.