And everyone will see me crossing the RR line at pi/2 and from your statement the reflected angle will also be pi/2. An observer on the train sees only the straight RR tracks and my straight road, with me on it, intersecting the RR at pi/2 and the reflected [crash amgle?] pi/2 angle. Correct? My incidental and reflected trajectory will be colocated. In what different frame of reference will light directed perpendicular to the mirror actually strike the mirror at other than pi/2? Now do you see what I am saying?