my dad had colon cancer, and it's no joke.
My first colonoscopy was done with valium, but I went to sleep anyway. I like that better than being knocked out, which is what happened the most recent 3. I have to schedule a procedure.
The surgeon that did my last one was alternating between scoping gastro and colon. I asked the nurse if they at least cleaned the scope between procedures. Apparently they don't think this is a good joke. There was a fairly big deal made about lack of cleanliness recently.
My first colonoscopy was done as a demo of a new scope. The salesman was there. I think that might have been the most expensive suit and shoes I have ever seen on a salesman.