The eternal struggle of every math student! Write a minus sign, and life goes on as normal. But accidentally write a plus sign? Congratulations, you've just entered the mathematical shadow realm where your entire calculation is doomed.
That one tiny symbol transforms you from a colorful, optimistic problem-solver into a black-and-white nightmare of despair. The best part? You won't realize your mistake until you've spent 20 minutes wondering why the universe's fundamental laws suddenly stopped working.
Nothing says "I've made a terrible mistake" quite like flipping your pencil over for the eraser, only to find it's been chewed down to a nub. Mathematical trauma in meme form!