Well, hang on, maybe there's another way to look at the power? Maybe he can sense fear, but not necessarily know where it comes from? Or maybe shades of fear, such as uncertainty right through to terror? Because Kit would certainly have some uncertainty, but while she's distrusting, she's more bitter and angry about it than anything else. Maybe Bigby can help stoke or quell fear in other people? If there's a little fear there, he can make it worse, or if there's too much he can make it a little better? Or, we could just be mindful of Bigby's abilities and make sure we put some exposition into our posts to let you know what level of fear they're feeling?