I reviewed KS law,
http://ag.ks.gov/docs/documents/self-defense-statutes.pdf, with an attorney this morning. KS has a castle law and the last provision, 21-5231, provides immunity from criminal prosecution and civil action. Nonetheless, my attorney pointed out these can always be rebutted, even though they do provide a great deal of protection to a justified shooting. Basically there are too many variables to comfortably say in advance exactly what will happen after a shooting. For example, it would be harder to defend if the intruder was shot while fleeing, surrendering, passed out or hurling on the floor. It would be easy to defend shooting an armed intruder who is approaching or aiming/threatening. He was fairly comfortable that he could defend shooting, in the back, an
armed intruder who didn’t know the homeowner was there. (The difficulty is knowing he is armed.) He also felt it would be easier to defend if the house is well secured, eg, door latches and hinges secured with long screws to structural lumber, pinned or blocked windows (so that the frame has to be broken to enter), a dog, audible alarms. Basically anything that will alert residents will be proof of the bad guys’ injurius intent.
The point is don’t rely on the law alone to protect you from a civil suit. Securing your perimeter beforehand, keeping your cell phone close and immediately calling the police strengthen your defense against a civil suit. Of course, these all help you survive to even face a civil suit.
You can always be sued and defending yourself against an unrepresented frivolous plaintiff is probably a minimum of $3,000 and can easily be much more. (For example, I’m one of five defendants being sued on a civil matter by an unrepresented frivolous plaintiff. He has no case. He has lost every round in court. He is possibly psychotic. The “deep pocket” defendant is doing virtually all of the legal work. My bill so far is $1,500. The “deep pocket” defendant’s bill is in the tens of thousands of dollars. I'll think long and hard before I do somebody a favor again.)