So when I got a cracked version of Minecraft, I made a new world. I was terrible at moving. I spent ages trying to 'Dig' a block of dirt. Clicking not holding.
Also on creative I was building a house, and a creeper came along, and I thought creepers could still hurt you, so I was flying next to a creeper all night.
Also, on that same world, I got some diamond armor (you couldn't equip it in creative mode then) and I couldn't equip it, so I kept it in my hotbar (thinking that would work) and then I went outside and mined straight down, and I died by the void.
In all that the controls were the arrow keys. My sister still uses them