"Obviously no filter, that would make it useful, or at least almost useful." He actually had to think about the question, brow furrowing even as he dropped into a chair, "I don't actually remember. Just kind of feels like one of those things I've always known."

He couldn't even remember if it had been Nik that had taught him, though he didn't think so, he felt like he'd remember that, but he also didn't know who else would have, unless he'd just taught himself off the back of the bisquick box.