Thanks guys.
I tend to think the spirit of Freedom of Movement is physical, not psychological. So, for my game, I wouldn't allow it. I see where you guys view it as an option, though. Maybe I'd let it do something if cast in advance...
Break Enchantment seems like a good option, though.
Again, thanks for the ideas and help. I appreciate it and I'm likely to post more questions like this. My goal for my current campaign is to use every monster in the MM. As a result, I'm encountering a lot of beasts I've never run before.
-ThaDium