Is it wrong that this reminded me of Monty Python and The Holy Grail, the bring out your dead scene.
I don't know. I was thinking more about one of the first MythBusters
episodes, where they debunked the fact that you can be buried alive for days. It was shown that you may have hours at most, assuming that the coffin didn't cave in first (which it did, and I think it was pretty strong steel).
I've lived for over 2000 years, and not all of them were good ones. I've made many mistakes. And it's about time I did something about that.
-The Twelfth Doctor, Doctor Who: Deep Breath