To stay strapped with the heater at all times.
Friend: what’s that bulge in your shirt??
Doug: bro I keep that Nina with me like a guard!
To have in ones possession a 9mm pistol at all times.
Friend 1: Bro this place is kinda dangerous, what if we get robbed?
Friend 2: Don't sweat it bro, every city is dangerous when I'm in it, I keep that Nina with me like a Guard!