Funny thing about Colorado - You are only "allowed" to shoot a BG if he's "demonstrating intent" to harm you while inside of your house!
What a load of crap. If I wake up in the middle of the night and find some guy walking around in our house looking around - he's going down, and I'll question him later if he's still breathing.
The stupid law actually creates the incentive for a second shot.
If he's still breathing, you know he'll end up suing you later as he tries to prove how he was "harmlessly" walking around in your house. So...........boom, boom. No witnesses. But you do need to carry plenty of ammo because if he's in your house with buddies, you'll pretty much need to make sure you get all of them.