Ralf Schumacher recently injured four crew members without any intention during the last DTM race. I am sure most of you watched the footage on internet or TV. Lucky, no one is serious injured.
When I watched the footage, I remember a similar incident from Michael Schumacher during his career in Ferrari Formula 1 team. Nearly 12 years ago, Michael Schumacher caused an incident in pit similar to his brother. I remember the incident but cannot remember the cause of the incident. Most probably, Schumacher was told to go before the pit was finished.
As you can see, the pit crew has a very hard and dangerous life!