Thread:Midoki24/@comment-29259794-20131025001752/@comment-1387629-20131025124009

It happens with cases in which the hand really does matter such as with Green Lanterns. Specifically, Sinestro has always uses his left hand despite being trained to use his right. Since 'sinister' is supposed to mean left-handed and is another word for evil he should always appear left handed.

But often this is looked over but if it is confirmed on panel then you can put it in the trivia section and make sure you source it.