Twice, once with 3 Hispanics in Florida trying to pull me from my car and I cocked the hammer GI Colt .45 and held it to the first guys nose. This was late a night and his 2 amigos did not see the pistol. They did a 3 stooges routine where the first guy is in reverse while the other 2 are still trying to come get me, first guy finally told them in Spanish and all then ran and hid behind a parked car. I bought the .45 from a marine friend, no numbers matched, had extra barrels, slides, mags, total cost $40 American dollars.
The other time I was on my property and held my .38 super at my side.