I'll start- the biggest bullet I ever dodged was when I decided not to go to business school. At the time I was living and teaching English in Shanghai, China, and I had originally moved there because I thought that learning Chinese would look great on my grad school application.
After awhile, however, I realized that the best-case scenario of holding an MBA was that I'd go to work for a big-name company and become a middle manager who wears a suit and commutes to work everyday. That sounded like a slow death to me, so I coasted in a job I disliked for a few more years until a friend told me about coding bootcamps. I applied, was accepted, and attended a bootcamp based in Chicago, and today I'm a senior software engineer who loves the creativity inherent in the craft of coding.
I saved myself $100-200k in grad school tuition and 2 years of sitting through multi-hour lectures that I knew I'd hate, as well as a career trajectory that would have added little if any value to my life or the lives of others.
1. https://sive.rs/bronze
On 07/07/07 I was heading with our one year old daughter to visit a railroad museum in a rural area about 80 miles south of home, when I started having a bit of a back ache. I stopped and got some ibuprofen, and continued on my journey. After a few minutes, the pain spread and it got worse... I decided to stop, call my wife (a nurse) and ask what to do... that call saved my life, and possibly someone else's along with my daughters. She had me call 911 and head back towards civilization.
The ambulance met me at the off-ramp, took great care of my daughter, and got me to the hospital. It turned out that my gall bladder had declared war on my pancreas, and if I hadn't stopped and gotten treatment, it might have killed me. I am now a man with no gall.
So, opening that email changed everything.
I was also extremely lucky that I ended up having down and got hit in the butt as, to others, there's nothing that suggests I was in such a traumatic accident.