Get off the track and get behind the barriers. Reduce the number of people at risk. Speak about it afterwards. Racing involves crashing at all levels. Endangering the marshalls as they have to cross the barriers to try and herd you away as you are having an animated conversation about WHY your car crashed into the other guy is needless.
You can see near the end that he apologises. We all make mistakes and as Stirling Moss once said " If you are not crashing, you are not trying hard enough "
RW