Taser?
Did they actually fire the Taser projectiles? Or just use the contact probes on the front of the unit? If I were an officer, I'd be somewhat hesitant to fire one of these at any significant range due to the confined area involved and the possibility of hitting a bystander.
Tasers can be used as handheld stun prods. In fact, equipping cabin crew with a few cattle prods could facilitate faster passenger loading/unloading.