Especially when safety is the subject. I just heard a South Dakota deer hunter shot his son's kneecap off pulling the gun out of the car. They amputated the leg below the knee. Guns do not accidently load themselves and pull their own triggers at random. Someone failed to clear the chamber in the first place, in the second place did not keep his finger out of the trigger guard until he was ready to shoot.
Accident implies no one made a mistake, it just happened. This, while unintentional, was no accident.
Be safe, call your friends out when they are not safe, and be humble if you get called out. After all, giving your left leg for a shot at "that buck" is just an expression!