Follow this guide on Terminator armament in case of imminent android attack.
Just in case there's a robot uprising (like, say, this week), Wired has helpfully posted a guide to defending yourself against the various "Terminator" androids. That's right, from the television series. Taking note of the detailed armor analysis for each model Terminator, you will know which weapon to choose from your at-home arsenal and where, precisely, to strike.
Good hunting! Read the full article on Wired: "How To: Terminate a Terminator (Updated)"