I'd assume he was a lefty living in a right-handed world! My husband is like that, he writes with his left and is essentially left-handed, but he does most things the way a right-handed person would (e.g. play tennis, guitar, eat, most other things!). Because he uses his right hand for a lot of things I think he never developed as strong a difference between his hand coordination as most right-handed people, i.e. I use my right hand for EVERYTHING and so my left hand is pretty much retarded! As an example he can use chopsticks with both hands fairly well, although prefers left, but I really cannot for the life of me use them with my left hand.
Which hand does he draw or write with??