How to Clear a Building

You know the scenario – you’re woken up by a noise in the middle of the night. You’re a bit disoriented, wondering if it was the cat knocking over a vase or someone is in the house. But you can’t ignore it; the kids are asleep and you’ve got to protect them. So you get out of bed to check it out. You have to see if someone is in the house, and if th…