I made a deal with my undergraduate friends who accompanied me to my organ practices in the dead of night at Colonial Williamsburg's Bruton Parish Church: I would deal with any ghosts, and they would deal with any physical threats (since several students had reported attempted or actual sexual assault around the campus in the early morning hours). I'm happy to say that we never had to confront either supernatural or RL assailants, but I don't mind volunteering for most ghost-confrontation duties so others don't have to.

(Well, except for pure vengeance ghosts like yuurei. Once you cross one of those, you're doomed no matter what you do or don't do, so I'm not going to go up against one of those under any circumstances.)