Stryder no thing can have no fears it's just not possible especially if you get the Bat Glare. I may create a rule saying everyone is scared of the bat glare even if it is Sunny who can't see. She can still feel his glare boring into her soul XD
There is a such thing as being fearless, Mason simply has no reason to fear anything. He's already faced the worst horror he could possibly imagine. So Batman's glare isn't anything to him.
It's a rule that I'm gonna add in I think it's fair because it's the DC Universe and you can't not be afraid of the Bat Glare. It's a Bat Cat Official Rule based on the DC Universe:3
That's a rule that makes no sense to me at all, everyone should be entitled to their own reactions of Batman. There shouldn't be anything wrong with someone not being afraid of him, if the reason's valid enough.