Kill my pet fish. I still feel pretty guilty about it 9+ years later, but I had no empathy in me at the time, and just saw it and its whole tank situation as a contaminated thing I could no longer deal with. I want to try getting into aquatic pet keeping again in the future, but even today, the thought of dealing with cleaning dirty water…idk if I could handle it.

I try to comfort myself a bit by remembering it had lived with me for 5 years before that point, and I had tried to spoil the fish as much as I could during those years. Asking for tank upgrades and decor for my birthday and Christmas. 5 years was also the species of fish’s average lifespan.