There's an extremely funny comment thread at Reddit in which a former US Marine describes how he and his comrades were overcome by rampaging Norwegian schoolgirls. Here's an excerpt.
We made it to right about where the main entrance of the school was, and the doors opened; school was out. There were only a few kids, probably 6 or 7 years old. Lots of talking and laughing. Gawking at us as we walked by, with our guns and huge ridiculous snow suits. One precocious little bugger made shooting noises at us. We made shooting noises back.
And then someone in my group. I don't know who. God help me I don't know who...
Someone threw a snowball and hit a little girl in the leg.
And those little Norwegian children unleashed hell.
There was a shrill cry in unintelligible Norseman and the doors to the school burst open. School children flooded out like a never-ending flood of something that never ends. Screeching, smiling, sprinting - how the **** were they sprinting?? - little bastards were slinging snowballs faster than the laws of physics should allow. It was like that movie Elf. If you can imagine riding in a fast car in a snowstorm and sticking your head out the window. Now imagine the snowflakes that are hitting your face are the size of snowballs. We couldn't ******* see. We couldn't run. We could barely breathe. Holy ****....
There's more at the link. It's a hoot - and the comments following his story are also pretty good. (The language is less than polite, so be warned if that might bother you.)