Tetsutetsu had accidentally spilled his drink on your uniform shirt during lunch. He offered time and time again for you to take his shirt, but you polietly declined; as it wasn't that big of a deal anyways.

"Please take it, I insist!" He said as he groveled at your feet in apology, he was definitely taking it way to seriously...His hand held up his shirt to you, he wanted to make it up to you.