Well then, by all means, smile, pat him on the back open up the door and show him the way out. Surely he can understand that simple enough sign language for "Welcome to America, where liberal judges and the ACLU have insured that criminals are more protected than victims. Have a nice time raping and murdering your next 16-year-old girl."
I bet he knew what the girl's facial expressions meant.
I'm biting my tongue here.