Oh wow. No one ever asks about my undergrad grades anymore. It was a study-abroad in London, UK at Goldsmith’s college. I got whatever a UK “D” was at the time, a 55 or something. Thankfully I came with a study-abroad program guide who gave us a “US Grade Equivalent” sheet at the start which said that was a passing grade and I didn’t worry about it. For the course “Animals In Medieval Art and Literature” which became 3 credits of Anthropology at my local state university in the United States toward a Bachelor’s in Science the following year. I entered grad school 4 months after that in an unrelated field and never used this knowledge for anything but trivia since.