It amazes me that people continue to believe Trump is impulsive. There's nothing impulsive about anything Trump does; it's all extremely calculated. If I didn't know better I was say the press were in collusion to spread that myth in order to make people underestimate Trump, but as usual Occam's razor applies and the press are just full of idiots.
As a point to consider: How many times has Trump "impulsively" pulled his gun and shot, or even threatened anyone? Never? Not once?
He does have a concealed carry license, and in an interview he said he's almost always carrying.
That data point should be factored into any discussion about how "impulsive" he may or may not be.
(Disclaimer: Charter #NeverTrump member since the first time he made noises about running as a Reform Party candidate; I didn't vote for the SOB.)