Me personally. I needed 5 surgeries (2 overnight) and about $100,000 worth of medical care because I changed my toilet seat.
ETA Details: I needed to replace my toilet seat. On a whim, got a padded one. Terrible mistake. Because I always flush with the lid down, and the padding provided a moisture-resistant seal, I ended up with a bunch of bacteria growing on the underside of the lid. This led to me getting a persistent UTI that I couldn’t shake. By the time I considered the toilet seat as the cause and started wiping it each day with antibacterial wipes, it was too late.
I went to a urologist, who tested for cancer, said I didn’t have it, and didn’t seem concerned, so I just lived with it. I ate crasins and cranberry juice to reduce symptoms and dealt with the pain.
After at least a year a routine urine test from my regular doctor showed I had blood in my urine. She was worried I might have kidney stones, and ordered an ultrasound and CAT scan. Boy was she right. My kidney was at least 1/4 stones. They weren’t passing, just hiding out quietly in my kidneys, growing.
Staghorn kidney stones will hold bacteria safely tucked away from antibiotics, so no matter what I took to clear up the infection they came back. And the bacteria made the kidney stones grow.
It took 2 surgeries where they cut into my back and inserted a laser to blast away the stones. Then 2 more using sound waves to clean up the residuals. One more to take out the stent because it had gotten cemented to the walls of my bladder by flakes of kidney stone.
Because one of the surgeries went through my diaphragm, it hurt to breath for 6 weeks, and to take a deep breath like a yawn or sneeze for 6 months.
All because I wanted a comphy toilet seat.