Would you be buried alive for 48hr for a million dollars?
You are buried in a coffin 6ft deep, with no light or cell phone. There is only a small tube connected to the coffin from outside that allows you to breathe (edit: you can breathe with no difficulty). After 48 hours, you are dug up and given 1 million dollars. Do you do it?
Edit: No food and water, no diaper, and no contact with the outside world. Once buried, they leave for 48hr and come back to dig you up. The coffin is only wide enough for you to lay on your back (no rolling around), and the inside is wood and not particularly comfortable. The only items you're allowed to bring with you are life sustaining medication (e.g. an asthma inhaler). No knocking yourself out with pills or anxiety meds. The money is a briefcase full of cash.
A quick run to DDG for casket dimensions, along with some poking at my calculator tells me that if you were buried, you and your casket or coffin would have approximately 5,100 kg of soil on top of it. Caskets have thin steel in them, coffins are typically wood. I feel like any dead body containment device one could buy wouldn't be able to hold that weight.