I’m Lost

I work at a training institute, it’s like a school, and a co-worker found this stuck on the bottom of the bin under the shredder after a busy day of exams. I don’t know who the person was, or if they ever found their way out of that pink square, but the biggest mystery is how it got in this bin without being shredded? If it was a creative writing exam I’d say: “fail” – If it was an art class, I’d say “A+”!