This is starting to affect me now. The Mrs is telling me not to use it in the living room, I'm refusing to comply based on the stuff I've read, which is a lot, so it's causing arguments.
Her brother is agreeing with the Mrs because of what he's seen on the news but I know exactly what's in my diy liquid.
Edit: For any new vapers reading this, Diacteyl is found in some custard, cream, desert type liquids. Some flavour concentrate manufacturers sell these Diacteyl free (Capella v2 comes to mind), and most of the best, trusted eliquid manufacturers eliquid will be diacteyl free too. If you're unsure they'll be happy to put you straight if you email them.