Man literally just walked across the frozen great lakes to return a library book that was 47 years overdue, and the librarian didn't even say 'thank you'—AITA for thinking the system is broken? TL;DR: Guy finds a forgotten Checkov novel, decides ice-skating through a polar vortex is a better use of his time than using a mailbox, and gets absolutely ratio'd by a Boomer with a stamp. Peak performance from the land of 10,000 lakes and 0 empathy.