Hi,
What is the best practice for dealing with service interruptions, like sick leaves (one or more days), doctors appointments (a few hours), and other appointments that collide with service hours.
I have found the "vacations", which work well, but there are also other kinds of service interruptions.  I would love to be able to simply add "Closed" or something similar, which would remove timeslots from the booking calendar users see. 

I do not want to send automatic cancellations for bookings, as sometimes, I might be able to find a substitute worker.  

I am running WordPress 3.4.3 and Easy appointments 3.11.12.