Fortunately I have no "defining moment" that made me decide to start carrying a gun. Truthfully, the thought had never really occurred to me until 2001 when I had the opportunity to take a free CHL course. Since it was free, I figured I might as well. So I did.
When I took my class the only handgun I owned was a Ruger P90. Needless to say it wasn't very concealable so I never carried. It wasn't until late 2001 when I bought a Taurus PT145 that I started actually carrying. By the way, that gun was promptly traded for my first Glock...the G30.
Now I pretty much carry all the time. There has only been one instance where I thought I MIGHT have to draw my gun. Fortunately I did not...and I hope it stays that way.
"I can do all things through Him who strengthens me." - Philippians 4:13
G19, G17, G23 (EDC), G22