CCW Class 101
Get family to "safe room" ASAP if you can. Take a defensive position within that room with weapon of choice. (mine would be a SxS double barrel). Call 911 if possible and let LE know your present location within the structure. Do not leave that position until LE arrives. If intruder is ID'd as a threat by invading your safe room, fire until the threat no longer exists. Pray to God that you didn't kill an innocent person. Thank God that you and your family are safe. Be prepared for the impending investigations, second guessing, possible criminal prosecution, and civil law suits that may follow. Remember that if you are alive with a safe family you did what you had to and leave it up to Gods judgement of your action, no matter how badly it may turn in the aftermath.