[ Wu whips around to face him now, and he really isn't very intimidating, staring up at this guy with his fists at his sides. He glares daggers up at him ]

What threat would be useful here with a guy who is not being very helpful at all! [ Said pointedly loud in case the receptionist can hear him ] I can't just--that's all I have! Had! I don't know! Nothing's working on this guy!