Random Thought For Today

I walked in the bathroom at work the other day and there was a sign on one of the stall doors that said "Out of order. Thank you." It got me to thinking what exactly they meant by saying "thank you." Thank you for breaking the toilet? Thank you for not removing the sign and peeing in ther anyway? Thank you for observing our pretty sign? Thank you for choosing this bathroom? Thank you for what??? I wonder...