11. Many games that I've played have the cooldown removed when out of combat. But if you use a combat skill let's say in DOS, to attack an NPC (if that's even possible, I've not tried forcing it) then that would automatically put your into combat and your spell that you used would be on the cooldown timer again.
I don't know, to me it's just a matter of convenience since I tend to use things like teleportation to move one of my characters someplace so they can get an otherwise unobtainable loot container. At worst it simply means that I can't do anything in the game for xx seconds until the cooldown wears off which leaves me twiddling my thumbs which a good game should try to avoid if at all possible.