I'm with @fredders
Using shadowplay is great! With a simple press of a button it saves the last 30 mins of gameplay (or less) depending on your shadowplay settings.
However i must say, i only report the obvious cases. Mistakes are easily made if you don't pay attention.
So for those truckers out there that never heard of shadowplay, look into it! Your videocard might support it!
It saves you from allot of unnecessary recording space on your hard drive!
Besides the whole reporting stuff, shadowplay is also great for saving funny clips along your journey!