Yep, ignore logic. That's the best way to make a decision like this. Hey, it's only life or death.A .50 BMG will do the job if the proper round is used and the perpetrator (bad guy) is standing at the precise location in the house when the rotation of the earth coordinates with the trajectory of the said over-sized round at the right temperature of the night is fired by an elderly mid 80's aged man, all the while screaming Adrian!