Very early in my flying career, I took a ride on a charitable fundraiser, after which I commented to the pilot that I thought it would be a good idea to brief his passengers about how to exit the plane in an emergency. He told me (in graphic colorful undiplomatic terms) how he was invincible, and that only he would open the aircraft door after an emergency landing.
Later in my flight training, I decided that despite his ugly demeanor, he was still wrong. Ever since then, I always briefed my passengers.