I remember once I was playing as a vigi and I did a run by weed pro to see if I could catch anyone there. Found two guys and tased the first but realized I had no zip-ties on me (Because I'm a dumbass.) Since I couldn't get them in restraints, I pulled out my rook and popped the first one in the head, and got in a gun fight with the second and killed him as well. I definitely didn't steal their weed and play it off as self defense to the cops.
The lesson: Always keep a lethal weapon on you, you never know when you might need it.