too late for any action on your part now, if you were a good crook, you would stay with him until the five minutes were up and got hit to drop a ball. But I understand you did not offer this for analysis, it is mean to be a joke.
I was always taught, that if I must cheat, I can cheat at cards, cheat on my wife, but never, never at golf.
Disabling somebody by "accidentally" slicing a golf ball into his eye is permissible but takes plenty of practice.