Violence is rampant in the theatrical profession.
Not real violence perpetrated by individuals to the detriment of others, but choreographed violence presented by performers for the enjoyment of others. In recent memory, many of the greats of the acting world received formal training in swordplay and combat and were well known for their skill at performing fight scenes. Unfortunately, with the reality of a swordfight effectively nonexistent, and with most individuals' awareness of fighting skills extremely limited, very low caliber instruction is usually all that is obtained, and that often only when the instructor isn't guilty of outright charlatanism. Even taking fencing lessons from and accredited Master doesn't fill the gap, as modern fencing is quite a bit different from fencing as it was taught for actual combat and almost a completely different discipline from theatrical swordplay.