"That's... a good question." Yako herself had earned a pretty mosaic of yellow and white scales dotting up and down her legs beneath her own uniform, but she was almost entirely certain that their growth was a matter involved with her contract, not her cuisine. "Cooking nullifies a lot of them, but every so often something slips through. I haven't come across any that are permanent; most don't last any longer than a case of food poisoning would."