So I was out patrolling with the gang, running into monsters on purpose and looking for supplies when suddenly this woman pops up and tries to take our gold. I had no idea this could happen so I was completely taken by surprise.
It was a very nice encounter but I was wondering how and why it happened. Is it just a very rare encounter that can happen if you run into a foe? Is it more likely to happen in one location than another? Most importantly, is there a chance of it happening again?
EDIT: Ok it just happened thrice. I guess it isn't actually that rare, I just hadn't spent much time fighting off-quest encounters before!