In 1912, a man named Franz Reichelt jumped off the Eiffel Tower wearing a parachute suit he designed himself. He jumped to test his invention–he expected to fly–but instead he fell straight down, hitting the ground like a meteor and leaving a 5.9-inch-deep crater from the impact. Did he mean to kill himself? Doubtful. I think he was just cocky, and also stupid.

Being bigheaded can be as irritating and as dangerous as being small-minded.