And what if you had a severe case of the old Montezuma's revenge and were stuck down there, having to deal with your own personal nuclear fall-out!
Imagine if you didn't make it through - that being the main focus of your obituary/Wikipedia page, along with your 'last' pictures, marked as 'unsuitable for those of a sensitive disposition'!
Also, what would happen if you had a fire break out down there? Would you simply take your chances with the flames or otherwise would you deploy the vintage asbestos blanket and bow out that way instead?!