Lakesidefantasy
Hero
Yes, I've done this, but it usually is not much fun. It usually creates a bit of friction between me (the Dungeon Master) and the Player. Real-world interpersonal friction, and I've learned the less of that at the table the better. I believe you need Player buy-in for this kind of thing to work.Back during the original D&DNext Playtest I ran my first 5E game. In it, something one of my players said stood out to me ever since. He said: it's odd that no one bats an eye when they find out I'm a warlock, a great old one warlock to boot. I recently started thinking about it again.
Has anyone thought about changing up how NPCs react to different characters based on the kinds of magic they know? Like the whole "White Magic/Black Magic" divide. Has anyone done such in their games? How do normal people in your games react to magic?
My Brother Vortigern character in post #28 above is in some ways handicapped because he tries not to cast necromantic spells in front of his clerical watchdogs. I dig this kind game play so I'm bought-in. Indeed I asked for this, the Dungeon Master didn't force it on me.
It sounds like your Player is bought-in and may enjoy it if the two of you work something out. Maybe this Player would like to try and hide their affiliation, or maybe they just want to freak out the squares without consequences. They planted the seed--see what grows and have fun.
EDIT: I see now that this is probably not a current game; so, "Your Mileage May Vary".