Mac: If you try to shoot yourself in the foot, you find out the OS has removed the firing pin from the gun.

Windows: If you try to shoot yourself in the foot, the OS will wrestle you to the ground. You may shoot yourself in the foot, you may shoot yourself in the gut, you may not shoot yourself at all, but they do try.

Linux: If you try and shoot your self in the foot, the OS would like to politely remind you we have *much* bigger guns available - try one if these!