I'm in college and a coworker of mine let me borrow her umbrella when it was time for me to go to class since it was raining... I really appreciated it so when i came back to return her umbrella at work, I bought her a tapioca express chicken snack (you know the little delicious bag of fried chicken pieces), waited for her to come back from the restroom, and gave it to her and told her thanks for letting me borrow your umbrella. My coworkers looked so thrown off they started laughing all the way until I left as I turned the corner... I feel kinda bad, was that socially weird of me to do?