I was at the Royal Albert Hall a couple of weeks ago, and on a visit to the toilet found the following interesting - they were in pairs of individual toilet/sink with it's own door, and yet although not marked out as either male or female, all the men queued for one pair, and all the women queued for a separate pair.
This pleased me even more than the event I was there for.
This pleased me even more than the event I was there for.