As @timdesuyo says.
Sometimes you're out to capture something. It works according to your plan, you're happy and all.
But maybe something different happens, and you have to enjoy it too. Because that's unique, unplanned and that's cool too. And also, it's called life.
I was out in Lille (North of France) and was following the freerunning guys. Then this young person stepped in my frame and had some fun.