I took 2 people out when I sold my previous car, never really think about something like this happening. I presume they came across like decent people?
Feel for you
Nah, I'd never do it. I always open the car, leave the keys in the house and lock my front door and tell my missus to watch out of the window/through the spyhole incase anything happens......but I am pretty paranoid about this kind of stuff after hearing lots of horror stories from my mrs who's a copper