Turnstiles

Whenever I swipe my Metrocard and the message "Please Swipe Again AT THIS TURNSTILE", I get a little on edge: the "AT THIS TURNSTILE" part making me think it's fooling me into standing there while alarms go off in a library I have an overdue book at from 1985 and within seconds library ninja teams will come hurtling from the ceiling "We got you now, fuckhead!!!"