Yeah, it's a bit too easy to just make a micromovement with your mouse, and zap your frontliner in the behind instead of the enemy. I like OP's idea about having to press Ctrl or something. I would actually like that implemented for attacking the ground too. I don't know how many times i was about to attack the enemy, then to change my mind and try to look for a better spot, only to shoot an arrow right into the ground.
