I had just gotten Minecraft, and was super excited to play. So I got on, and quickly I learned how to break blocks and place em, but I forgot how to move. Luckily, I was on creative and peaceful, so I accidentally dug a trench, and got stuck because I forgot how to move, like WASD. So I placed a bunch of ladders upwards (I learned how to jump and fly) and didn't even know how to climb up! I spent thirty minutes trying to figure out how to move and climb ladders.
(PS my minecraft username is fireblade3399 and I have been playing for a LOOONNNG time now, so it's a good memory.)