emphasis in above quote added by me
You can draw or point a gun at the same point when you could shoot someone, not before. If there is no threat to you (significant threat, ie severe bodily harm or death) than you can not use your gun
I think you would probably agree the threat can also be a situation that does not concern you if and when another innocent human being is having their life threatened?
"Damn the torpedoes, full speed ahead!" -Admiral Farragut @ Battle of Mobile Bay 05AUG1864