Set your house up Home Alone style, except with projectile weapons using live ammunition. I guess at that point it isn't really 'Home Alone' style anymore, more 'protect-your-opium-field' style, but the principle is the same.In seriousness, I personally believe a gun in the home is always going to be more dangerous to you than useful, but I don't live in as scary a neighborhood as some. I suppose my only advice would be that if you do get a gun, aim low. Better a leg-wound than a murder on your conscience!