In four years of college, I have collected a total of 569 takeaways that were taken by mistake or left behind. As graduation approached, I shared it on campus forums, and 566 of them were used in the composting experiment of my graduation thesis. As soon as the post came out, it caused a lot of misunderstandings, and some people questioned me for wasting food. I immediately posted my paper on mixing excreta with organic food to improve compost quality, research on carbon-nitrogen ratio and decomposition process, and explained that this was a scientific practice. In the early morning, the forum was full of discussions about environmental experiments