You know how it is: You're driving along, listening to your music or chatting with your passenger, just minding your own business without a care in the world, and then a tank crosses the street in front of you. Happens all the time.
Oh wait, you're saying it doesn't? Hmm. Maybe it's because you don't live in Russia. Everything I have seen on the subject — this YouTube clip and the movie Goldeneye, to be exact — leads me to believe this sort of thing is common over there.
The passengers in this don't even seem to shaken by the tank. They just kind of pause for a bit and then continue on, perhaps wondering what kind of mileage the tank gets. It's Russia. Tanks are no big deal.
Hat tip to Petrus!