Me and my friend were in our base on a factions server. At the time I was a bit of a noob. In factions you're meant to protect your base; once I saw somebody mining outside the window and my friend drew her sword. I was the nooby one who attempted to dig an escape tunnel with my bare fists when there was no immediate danger in the first place.
Here's another one: on my first ever minecraft world I wanted to do so much awesome stuff! I had it all planned out, but I was hit with a sudden flash of realisation.
I had no idea how to jump.
So I spent the next week or so using stairs to get around until my friend taught me about the SPACE BAR. (This is in creative mode).