Slowness of Discovery

It has taken me an entire year to realise that the 'lock' on the door to the disability toilet in our office doesn't lock anything. Turns out that the real lock is further down the door. What I thought was the lock has something to do with a pin pad outside the door, which is presumably there if somebody wanted to make it really difficult to get into the toilet. Not what a person with a disability needs.

I only discovered all this the other day when someone else tried to come into the toilet while I was there.

Seems I have a talent for slowness of discovery...