To err is human; pilots are human and it is inevitable that they will sometimes make mistakes.
Let he without sin cast the first stone. Agree
Sillert, and no one has invented a new way of having an accident.
The well trained and highly experienced have come, or nearly come, to grief performing the same maneuver. British test pilot demonstrating the Hunter to the Swiss just made it, forgot about the impact on performance of the high altitude airfield, four T-38 (Thunderbirds) in formation impacted the ground, and of course the Thunderbirds F-16 more recently, as a result of a simple, simple error. In Australia we had a RAAF aerobatic team flying two seat Vampires impact while performing a roll, four aircraft and six people.