Last topic we talk other effective ways to control mobs. You had better always keep these in mind. Even on pulls where sheep is not an option, you still have the ability to control a mob. Something nasty smacking the healer? Feel free to Buy WOW Gold and peel that mob off of them and kite it around the room. A group of adds coming in from stage left and the tank might not be able to round them up easily? Ring them with frost and give him a few seconds to gather them up. There is one thing for you to remember: If the group wipes, it does not matter what your DPS was.
By right-clicking a mobs unit frame and selecting set focus, you can set that mob as your focus, adding a handy unit frame to your screen with that mobs target on it. Feel free to use this on your sheep target. It is extremely convenient to keep visual tabs on that mob. Therefore, if and when your sheep breaks, you are on top of it. I know a lot of you like to focus the tank, so you can always know what he is targeting, but there is something to be said for using you focus on your CC target also, especially considering the high importance of CC in World of warcraft gold.
Also there is another good idea. It is to find an addon. And you are comfortable with that, which will alert you to specific triggers, including when your sheep is broken. I use Mage Nuggets for this, but pretty much any mod with spell alert functionality will do.