"I am extremely unfamiliar with local security procedures, don't know what spells might be cast against me, don't know what spells you would cast in response, if you want me to on the floor you need to shout 'Fall down!' and not just the name of a spell that any idiot knows means I should fall down.  Let me know if there's anything I can do to make your own lives simpler or easier."

"I am extremely unfamiliar with local security procedures, don't know what spells might be cast against me, don't know what spells you would cast in response, if you want me on the floor you need to shout 'Fall down!' and not just the name of a spell that any idiot knows means I should fall down.  Let me know if there's anything I can do to make your own lives simpler or easier."