What's the worst pain you've ever experienced?

I don’t know if this has been covered before, but I’m curious. What is the most physically painful experience you’ve ever had?

In my case it was probably taking 4 stitches just above my right eye with no anesthetic.

Third degree separation of the acromion from the clavacle. Result of mountain bike riding in Whistler, Canada. Didnt get decent painkillers until arriving back at Vancouver from Whistler. A very painful bus trip, I felt every pebble on the road - and then when I get to town, the bloody doctor offers me a homeopathic remedy - I kid you not. I said give me fucking codeine.

Locking off duplithread