When I showed up to the dentist to get my wisdom teeth taken out, I didn't want to remember any of it.
So (like everyone else I know who's had their teeth surgically removed) I drifted away on anesthesia and mumbled non-comprehensible sentence fragments to my super-amused dentist.
And that was just a minor surgery.
Yet in Brazil, 33-year-old Anthony Kullkamp Dias played the guitar and sang to doctors while undergoing brain surgery to remove a tumor.
But he didn't just play to entertain the doctors with some background music.
Mashable explains that keeping the patient awake helped doctors map brain activity and track the man's senses.
Dr. Jean Abreu Machado, the anesthesiologist and clinical director at the hospital, said the brain tissue does not have sensors to pain. However, the skin and other surrounding tissue do, causing an interesting challenge to doctors on how to "keep the patient awake and pain-free," CNN reports.
But Dias says he felt no pain, and, among other tunes, he played The Beatles' 'Yesterday,' according to CNN.
Similarly, in 2013, the Huffington Post reported on Brad Carter, a man in California who played his guitar while doctors inserted a pacemaker into his brain.
"At the time, it was reported that Carter's guitar playing allowed doctors to find the best location for the device," HuffPost explained.
We don't think we want to see what's going on on the other side of that blue curtain, but what we can see is absolutely awesome. Watch below: