Doing a half-roll is going to cause numerous casualties in a passenger aircraft, especially if the folks in back are fighting the hijacker. I'd hold back on that unless or until the hijackers start coming through the door -- sure will add spice to the sim checks.
Something like quarter to half G excursions in all three axes would prevent the bad guys from doing much in the way of harm with what ever weapons they've managed to get aboard. Hit the right rhythm and everybody in back will be too busy being sick to do anything.