"Seriously..." He's going to learn the hard way, but for now he's at least able to dread it a little. Wrinkling his nose, he pays attention to the debate of theory versus practical instead.

"Hnn...It might not be, but it could be if you wanted to alter the spell after all- though you're right, knowing who did it first is far from the best thing to be tested on," he huffs. "But if you know why you need to do something to get a certain result, you can chance that for a different one, without worrying about if it'll blow up in your face."