Leon was somewhat annoyed at being pretty much ignored by everyone. "Hello? I'm talking to you! Am I invisible or something? ...Well, technically all I'd need to be is inaudible. Maybe I've gone mute without realizing it? No, that doesn't make sense, because I can still hear myself. Then again, I can hear myself think too, and thoughts obviously don't make sounds either..." 
Completely lost in his own thoughts and ranting, Leon didn't notice the fact that the conversation was switching towards a more hostile air. Nor did he notice the fact that a large ball of ice was now arcing towards the group -- himself included.