Not sure if I could stay awake for many things. I stayed awake when the carried out surgery on my hand. Basically went into the hospital, they stuck in a local, about an hour of surgery, walked out of the hospital. The hospital charged me $500 excess for my "stay" and the surgeon charged me $1500. If it didn't take so friggin' long then I'd become a surgeon.
When Dad had a heart attack he convinced them to give him a local then he sat there watching the open heart surgery. I have a pretty strong constitution but I'm pretty sure that would freak me the hell out.