>>/91/
Because you're not paying attention

 >>/96/
Yes and yes. Normally there must be no one withinin 180° from the shooter's main direction and he mustn't point the muzzle of his gun elsewhere. Also at least here you need to pass a safety exam to take part in higher level matches where you run around in the open with a loaded gun. There's zero tolerance for safety violations so thankfully accidents are very rare. But yeah, not exactly a mainstream sport.