The bolt is locked by a rising bolt lock. Sting then locked Triple H in another Scorpion Death Lock. I would lock the bathroom door and hide. This gave them control over lock and door controls. The safety does not lock the slide. She wakes up to hear someone fidgeting with her door lock. This is a lock and key design. Olivia didn't lock Negan's cell properly as the door swings open, which Negan notices. Shortly after entering the mansion, the doors lock behind them. The rear differential lock has been discontinued. Open rear differential, Electronic Differential Lock (EDL). Also known as a bridging wrist lock. Benson decides to lock him up instead. And, listen, don't lock up the tavern just yet either. If intimidation fails, they lock horns and try to injure each other.