So just so we're clear, I don't have any hesitation in saying the OP is having a laugh at our expense. Mark Dally, the OP--Crunchypop, is a potter with a lot of experience (like, graduated from art school with an MA in ceramic design the year before I was born kind of experience). He knows better than this. He fires lustres and brightly coloured wares all the time. From what I've seen of him on social media, he's got a bit of an impish sense of humour, too.
At least, I hope for the sake of his health that he knows better after 34 years plus of working with ceramics....
If it is a joke, it's irresponsible of him to post something like that on the 'net, where folks who don't have his level of experience might think it's okay.
- JBaymore likes this