No, Atomic Burger insists, they're not kidding. If you want to eat the Fallout Challenge -- a burger rated at millions of Scoville units, you'll have to sign a waiver of liability. You also have to wear gloves because otherwise you'll burn your hands with that thing that you're about to put inside your body.
But enduing that experience, assuming that you actually survive, is worth the pain. That's because you get a free t-shirt and your name on the restaurant's Wall of Flame:
Just one in ten of the 500 people who've taken the challenge have completed it so far, with Mr Bunce admitting he could only manage a quarter of the burger.
He added: 'We did a four-week special of the Fallout Challenge, but after the special came to an end we had so many people asking to do it, it ended up becoming a permanent fixture on our menu.
'The sauce in the burger contains a variety of chillies including the Ghost Chilli and the Scotch Bonnet. But what gives the sauce a real kick is the Ghost Chilli extract which registers at 4.2 million Scoville units.