I believe those four lads should become organ donors, immediately, while conscious, muscle relaxed, but with no pain mitigation.
Take the corneas last, set up a mirror, allow them to watch themselves being disemboweled one organ at a time.
"Now that we have all the skin we need for those burn victims, next come the pancreas and kidneys. Then we'll take the liver to get to the small intestine. We'll take the lungs and heart right before we finish with the corneas. Nurse, get those organ transfer folks some chairs to sit on. I'm going to make this take a while."
It'd make a great YouTube video to show to their (I'm assuming also knuckleheaded) friends.