So you're in bed, here a noise downstairs and decide to investigate. You find it's an intruder. What do you do? For me, it's simple. My view is if a person enters my home illegally and with intent to rob/kill/damage my family or property. I will take whatever action is necessary to defend them. I know it's hard to judge what you would do, but given my reaction to past situations much like this, I would confront them and if they failed to leave/tried to attack me I would take appropriate action to deal with the situation, take down the intruder. As far as I am concerned, the moment a person enters my property they forfiet all rights they have, and any injury sustained to themselves as a direct result of thier/my actions they deserve (yes that includes me killing them if they really tried to fight). I know in the UK, the law is rubbish and basically says "hide in your room and hope they leave you alone", but would that really be on your mind if your family is in danger? It does say 'you may use reasonable force' to defend yourself, but how do you judge that at 3am, when you've just got up and have no idea of the intentions of the intruder? So what would you do? What does your countries law let you do?