Like all Missouri students, I had to take a bunch of aptitude tests when I graduated from high school. It was a decent ego boost, as I tested extremely well in every single area except one: clerical, which consisted of looking at columns of numbers and marking which ones were the same and which ones were different. I tested at about the 5th percentile on that one.
"Fine," I thought, "That's not a skill I'm ever going to want or need anyway."
Guess what I'm spending my day doing?