"Ms. Bopp, whom I had never met before today, was very generous and helpful this morning when I forgot my handouts to distribute in class. Even though she is not responsible for this class and I was just a stranger who wandered into her office, she happily volunteered to help. I emailed her the handouts from the classroom, and she printed them and voluntarily stapled them right away, so I could make it back to class on time. Thank you Ms. Bopp!"
Congrats!