Originally Posted by carkis
Intimidating Shout aggros if noone else is hitting that mob; then it becomes useful. Thunder clap is the same way. If there is a non-hostile beast nearby however, they will become your new friend too. The radius of the shout will aggro, but it's not that large.
Not sure about charge though.
Ya thunder clap is safe to use in the mob that you are fighting but if you are in BFD for example taking on the turtle boss you cannot use thunderclap unless you want to fight the other turtles that may be close.
Thunderclap is great to use on ogres and dwarves since they will pound you very quickly and you need to slow their attack a bit.