I have a character I'm tinkering around with, and I'd love your thoughts. This character is a bit of an oddball with jerky, furtive movements. He's quiet and a little awkward. He's meant to act as a squire of sorts to a fighter, and his MO is to call out percentages for success- his mind quickly assesses the terrain, opponent, weapons, etc to define the odds that he calls out for his fighter to use as he or she sees fit. He might identify a way for his fighter to improve the odds and call that out as well. My question is... how do I make this work in a way that's believable mentally? Constant Counting Disorder doesn't work since that's, y'know, counting. Could he be on the autism spectrum? I need it to be something that allows him to still have interactions that are capable and intelligent, so I don't want to get too deep in to mental illness. Or is this totally off-the-charts and not believable at all? Suggestions and ideas are welcome!