Smudged Ink
For sure, this one has happened to all of us at some point in time, especially during our school years.
You are working hard on an essay, writing as quickly as you can, all while putting in the effort to have the clear and neat handwriting possible. You are feeling rather proud of how great your paper is going as you move on to a new line and… ugh, how did that smudge happen? No matter how you end up feeling about your paper once it has been completed, the smudged ink always stares back at you like some sort of failure.