Male on the left, female on the right please!

Male and female separation

I went for London, the Summer Musical last Sunday. In order to go into the Amphitheater, we need to take a train from this train station. On the entry to the station, there were two sign with MALE and FEMALE.

Yup~ Male please proceed to the left and Female please proceed to the right. Of course i went over to the left and stood there.

Staff : Sir, you can stand over there *pointed to the other side (i.e. Female side).
Me: Hmmm... The side is for female, right?
Staff: *look at me with a blur look... huh? Don't worry you can stand there...
Me: Did you see the sign on the pillar... Male is on this side and Female on the other side.
Staff: Sir, the sign is for toilet on the side...
Me: hehehe... I know... just wanna to pull your leg. LoL....
Staff: *laugh...