When I find edge cases that are low-stakes and unlikely to occur, I usually just ignore them completely. If they do occur, and someone thinks I shouldn't have a

When I find edge cases that are low-stakes and unlikely to occur, I usually just ignore them completely. If they do occur, and someone thinks I shouldn't have allowed that edge case to go unhandled then I have plausible deniability of "I didn't think of that edge case". I guess I'm fortunate enough not to have the high "urge to fix them".