Hmmmmm idk. I've been playing for 2 years now, hard to remember my noob moments.
Probably a few days after I started, in Minecraft 1.0, I had built a house full wood, holes for windows, and build the weirdest couch in the world. Like 1 block in front of it was a wooden fireplace. Luckily when I lit it I put it out right away.
Or that time in the same world, in the same house, I didn't know what buckets were. So I wanted to make a 3x3 bathtub for some reason, but I couldn't get the water to it. I found this little lake a bit of a ways away. I tried to make a canal to my house but the water stopped like it does now when it is too far away. I dug it deeper, and by the time I got to my house It was like 8 blocks under my floor.
OR! When in the same world, since I was in a plains biome, I build this dirt wall that was 2 blocks high, and I ran out of dirt. It was to keep the wolves from the forest from killing my sheep. It wasn't even half of the plains wide and it didn't do anything.
So, later in that world, I got lost or something and accidentally found a village. I was sad because I couldn't find my other house and so I built a new house. This one was much better, since I had found a dungeon nearby and had a bucket. It also had a fenced in patio, a window, a storage attic, a bathroom, and finally a brick fireplace. I had a ton of resources, including my bucket with me. and I dug a 1x1 hole all the way down to bedrock. I ended up building a staircase up, and when I finished I couldn't get out because I was under the library doorstep.
Also, with that hole, I went back to look and it. I was standing on the edge, and then I to the bathroom irl. When I came back my friend had hit my forward control, so I saw the death screen. I was so mad, because I lost my stuff, had covered up my stairway, and I still couldn't craft a bucket.
I have more stuff from this world (Like 2 more things), but I don't really have time to mention them.