I ranted once at my fundie mother about how and why taking the Bible literally constituted deliberate misreading of it and that this was evidence of bad and unclear thinking and was therefore an error of religion. I'm not sure if she was convinced at all, but she's sure never brought up religion with me since. Note that I am in no way a Christian, in fact being completely atheist. I am still unsure if this constituted dark arts. I did, however, intend it to be a seed of the notion that joined-up thinking is not optional.