@anna@mathstodon.xyz @PetraPhoenix@beige.party @vicgrinberg@mastodon.social he was also just a god-awful teacher. Arrived 10-15 min late to class every day. Didn't have the book and had to borrow from a student each class (always accompanied by the story of how he gave his last book away while volunteer teaching in S. America) Wrote the book himself and it was wrong Poor orator Oh, and one time he missed class because he had to support and testify for his class assistant who was accused of taking sex for grades.