It might not be the most tactically sound plan to rush at an armed assailant, but I'm not going like a lamb to the slaughter.
Same here, my first instinct would be to cover my wife and if I thought I wasn't going to be found, to stay holed up. However, if I knew I was just awaiting my turn to die, unarmed, I'd wait for a hopefully oncoming moment to rush. I wrestled a lot in my younger days and feel I could still hold my own due to continued workouts. Once down, if possible, lift his head and slam it back down. Very effective at stopping fights. Armed, of course, I'd simply await my best chance at a stopping shot.