Out of Order

As is normal during my working day, mainly due to the copious amount of tea that I drink, this afternoon I found myself needing to answer the call of nature. So off I went to the toilet as normal, however all was not as it should have been. Here's how the conversation didn't go...

Sign: Sorry, these toilets are out of order.
Me: That's well out of order.
Sign: That joke is out of order.