It’s amazing what one finds when trawling around the interweb. I found the above picture but with no explanation about how the injury to the man on the left may have occured. I can offer a number of alternative theories:

1. He was appearing as an extra in a movie about the Battle of Agincourt
2. He had an unfortunate accident with a bowling ball
3. He was signalling a helicopter that 2 people needed evacuation.
4. He was explaining the correct sequence of removing pins during a trip flare safety demonstration