I wasn't killed by a trampoline, but last year I went to a trampoline park with some friends and my back started randomly hurting.
A month later, still in pain, I decide to get it checked by a doctor and turns out my back was broken. Fun! I had to get surgery and now I have cement in my back.
It was so weird (I'm young and healthy) that my doctors seriously considered it might be cancer. But I've done tests and it wasn't cancer, just trampolines.
Be careful!
Minecraft, I tried summoning and defeating the Wither and was woefully unprepared. The entire world near the fight was filled with craters from the explosions. I was getting ready to throw the entire world away. Then I decided to just cheat and turn Creative Mode on for 1 second, the Wither disappeared and I was able to continue playing, now with PTSD.
It didn't help that I was playing on Bedrock (switch), which apparently has a much more difficult fight than in the Java edition.