Crazy emergency brake test on a 60-tonne tank

These people in front of the tank are either very, very brave or very, very dumb.

We don't know the origins of this video but it sure as hell gives us the willies.

In the clip which has popped up online in recent days, a military tank identified as a Leopard 2 drives full tilt - this is a 60-tonne vehicle capable of 45mph, let's bear in mind - down a road in what appears to be a military installation of some sort.