My grandfather(mom`s dad) died of colon cancer back in the early 60`s. They lived upstairs from us in a 2 story house in Cleveland. Things weren`t as good as they are now, we got to see him suffer every day. Grandma didn`t speak english well and my Mom and Aunt got to play nurse. Not a fun job, most or all of his colon was removed and he pooped thru a hole in his belly. Discovered late, back then I don`t know if they had anything they could have done anyway.
I had the colonoscopey about two years ago, part of my diagnostics for MS, I was having trouble, they needed to be sure I didn`t have colon cancer so a good idea. Prep was the worst part, I ate mostly fruits and veggies and cereal for a couple days before. They had given me a gallon jug with some powder in it, fill with water and chill.
I think I had to start drinking it like 12 hours before I was due at the hospital, I finished drinking it sitting on the can. It worked!
Wife took me to the hospital, here they specify they won`t do it if you don`t have someone to drive you home, you maybe be groggy. We checked in, they wanted me to watch a short movie about it, No! I don`t want to know nothing!. I had to wait in a hospital bed for a short period, they put a IV in my arm, then wheeled me in. Doc asked me some questions, I told him I didn`t have any problems before I got sick, but may have MS. They put a needle in the IV told me to count to 10, LOL I got to 1. I woke up in recovery. Piece of cake, probably no one is eager, there is a purpose, it can save your life, or more grief.