There have been too many instances of rock climbers rappelling off of the ends of their ropes, which could have been easily avoided by tying stopper knots at the ends of their ropes.

I worked at a tire place for a summer and the first thing they told me was “See that torque wrench ? One mistake with this and you can kill a whole family in a matter of seconds”. I thought well, better take this thing seriously

THERAC-25. The world’s deadliest software error. Cost several radiation patients their lives by administering lethal amounts of radiation, and for a while, the doctors didn’t even know.

Leaving the stranded vehicle on the road in winter and trying to walk to get help. It happens in rural parts of our province once or twice a year and they find the body a few days later. They get disoriented and freeze.

As a healthcare worker, giving the wrong amount of insulin.

Pulling the knife out of someone

Mixing cleaning ingredients.

A friend’s husband locked himself out of their home. He tried to get in through a window that had security bars. While squeezing through his foot slipped and he essentially hung himself on the window sill.

Not being honest with doctors about viagra. It has many dangerous drug interactions and can cause a lot of problems from what I’ve heard. Trust me the doctor ain’t gonna judge you guys, they have seen much more embarrassing things. And it would suck to die because you wanted to hide something just for it to be later stated in your death certificate.

Near me there was a serious traffic collision. Several cars and 2 trucks. 3 people died when one truck ploughed into stationary traffic at around 50mph. The crash and resulting fire was so horrific 2 people were only identified by their dead dog on the carriageway (it was microchipped). It was on the BBC news and have been documentaries about it. The truck driver was on his phone. He was charged and is now in prison.

Almost any simple mistake can end a life if you're an anesthesiologist, that's how my grandpa died in his early 60s

Respected cardiothoracic surgeon tells a guy to stop smoking right outside the hospital doors Guy turns around and punches him a single time in the head. King-hit, or coward punched, whatever you want to call it He falls to the floor and hits his head a second time. On life support for four weeks. Nothing left to save

Long, long ago I was on the crew of a submarine older than me. We went into the shipyard; one of the planned jobs was to install some new equipment that required a hull penetration. One Friday afternoon a shipyard worker drilled a 1/8 inch pilot hole through the hull, intending to come back on Monday to finish the job. The job got cancelled, he got reassigned, and the hole remained. It was covered with duct tape to keep dirt out. The painters went ahead and sprayed over the tape. How deep can a piece of duct tape + paint hold on a dive? About 218 feet. Before you ask, yes, we survived.

Getting fired up from road rage.

Ignoring signs when cave diving. Bitch they put a Grim Reaper on it, turn around.

NASA executives overriding engineers on the launch of the space shuttle Challenger.

That all heart attacks have the exact same symptoms. They don't. Trust yourself and seek help ASAP if you are afraid that you're having a heart attack.

The Herald of Free Enterprise - not closing the bow door. 193 drowned.

I read an article a long time ago about a aircraft maintenance worker not removing a piece of tape that was put in place to protect a sensor during cleaning. The pilot failed to notice during the preflight inspection. More than a hundred people died in the plane crash.

Some homeopathic "medicine" for babies still contained deadly amounts of belladonna. Some babies died. Apparently, they did not dilute it as extremely as they were supposed to in homeopathy.