I got the Storm Call shout a while back and never used it. A few weeks ago I tried it when no enemies were around, and it just killed my follower, and then it killed me. Another time I was killing some bandits at a fort, and I used it on them and it helped me kill them (like it should) but when all enemies were dead, the lightning proceeded to, once again, kill my follower and I respectively. Why is this happening? Am I doing something wrong, or is it supposed to be this sh*tty?