Totally heard about this last night, I was like why can't my squirrels be like that. I had a pet squirrel once, but all it did was be cute and crawl in people's hair. Not nearly vicious enough.
I did see a squirrel fall out of a tree once, right into the middle of the road. I'd never seen a squirrel fall before.
Anyway, I think I'm going to go nominate Russian squirrels for the worldwide Fist award.