It's not for the feint of heart, but if you've ever wondered exactly how a death-defying cardiac operation is achieved without the patient kicking the bucket, this is how.
Being a heart surgeon must take some serious guts -- no pun intended. You're like a plumber of the flesh -- except failure means someone's death, rather than a bit of flooding. The patient doesn't have a heart for a moment there! How insane is that? It goes without saying, but don't try this at home, and you may wan't to leave watching this until a quiet moment after lunch -- it's amazing, but it's also pretty gross. [Reddit]