As a kid I was diagnosed with cancer, the op was successful and removed all the tumor but my kind was particularly aggressive and known for spreading, So I was but on the harshest chemotherapy regimen possible after I finish the absolute maximum I could of radiotherapy, There are no words to describe how absolutely horrible and terrifying cancer treatment is let alone going through it as a kid, but I overheard a doctor telling my parents that the chemotherapy causes damage to the inner ear and that they will only give me so many treatments until it starts badly effecting my hearing. Childhood me wanting the least pain and suffering then deliberately missed a few noises and added a few in to the next hearing test because the treatment was hell and at the time I just wanted to stop feeling so bad, And it worked they dropped my to a less potent version that had less sevear side effect

Admittedly in hindsight I want to travel back in time and beat some sense into childhood me for pulling such a profoundly stupid stunt when my life was the cost of it fucking up, but to this day I still feel an unease thinking about it. I'm not sure if this is the guilt of lying or the fact I gambled my life as a kid for a small reprieve of suffering in a very shitty situation. 

For a bit of context I was not a double digit age at the time but I was old enough understand somewhat what was going on. I knew it was cancer and I was told multiple times I wasn't going to die by the doctors and consultants treating me.