This isn't my favorite moment, just something that happened earlier today and I thought I'd share it.
I decided to try doing some solo Ultra Hardcore. For those of you who don't know what that means, it's turning off natural regen. You know how you regenerate health if you have 9 shanks of hunger or more? UHC gets rid of that; no regen except from golden apples, health potions, or regen potions.
I'm doing fine for the first night. Fortunately I find a village, so I have food and shelter. I get my basic tools and food and dig down into a cave. Whilst inside this cave, I lose three hearts to a baby zombie and two more hearts to another zombie that catches me off-guard. Luckily I find enough gold for a golden apple, so that's two hearts regained.
Back inside the cave, I get enough iron to make full armor and tools, so I'm doing pretty good right? WRONG. In that course of events, I lost 2.5 hearts due to my own recklessness in taking fall damage. So I'm sitting at 5.5 hearts and think hey, let's go to the nether and search for a fortress, I can get potions and get my health back!
And thus I attempt to make a portal using a bucket. Not once, but TWICE I misplace the lava and make obsidian in a spot that prevents me from using the portal. I finally manage to make a working portal (losing another half a heart from falling stupidly) and go through. It's pretty smooth sailing finding a fortress, luckily I found one not too far from the portal.
I get inside and start looking around. Turn a corner and guess what's right in front of me? A wither skeleton. R.I.P. me

I think I'm going to try again later, but this time I'm going to record it so you guys can have loads of laughter at me failing at UHC and raging.