Not a bad mistake or even a "mistake" really, but one situation reminded me of just how narrow the margins for error are.
In the final sequence of their 125 quarter, Cardinale tried to ride out Ramos for the win instead of giving up the escape and head to OT. He had a seatbelt and Ramos had a whizzer, and Cardinale tried to jump over Ramos's hips. Ramos's hips were too high, and Cardinale fell off.
It was a crazy scramble, so I doubt it was a conscious decision. I don't even know if he could have released the seatbelt.