Or you can just swap to one of the other wow's and make that your main until your normal main regains control
Keeping things simple and short = win, less can go wrong.

That said, the easy way to do this would be that if you're worried a character may try to stun/incapacitate/sheep/blind/etc your main, target an enemy then bind a key on all of them to assist. That way you don't have to put it in macro's, can use it whenever and can make them all target the same thing without having to worry that to make them target they will try cast/attack/do something.