You were grabbing a book from the library while using a chair. It it was very unstable, but you needed this book, and then the chair wobbled

"Oh, shit-" you cursed as you began to lose balance. Fortunately, someone caught you on time

"How clumsy." You gasped. It was the school delinquent! You quickly got up from his arms. "Thank you."

he rolled his eyes "Don't do that again. It's dangerous. Just.." he sighed and looked away "Tell me if you need a book.. I'll get it for you."