We have all seen the team-building exercise where people fall backward and trust other team members to catch them. The Dutch military has its own version, where a Leopard tank barrels towards a group at full speed and everyone hopes it stops in time. It's like a your average brake test, but with a 68.7-ton tank in place of a car and human life on the line.
What's more, the Dutch military is an entirely volunteer force. So everyone is there by choice.
Scroll down to see which one flinches first.