Many moons ago, I had a friend who, as nice as he was, was pretty much computer illiterate.
I was at his place to help him type up a document in Word. So he opens up Word, and to type the heading, he then proceeds to hold down the spacebar until the cursor is near the center of the screen, then types his title.
After staring dumbfounded for a few seconds, I showed him how he can just type the title at the beginning of the line, then center it with the Align Center button.
My second facepalm moment came shortly after, when he was typing out his document, which needed to be double-spaced, and yup, you guessed it-- at the end of every line he would press Enter twice to insert the extra line.