There are a few contenders:
– My mother screaming at me nearly every day and night for years about how much she hated me and wished I was dead.
– A coworker telling me that the only reason the company keeps me around is so that everyone has somebody to laugh at
– A crisis hotline telling me that the life that I described simply wasn’t worth living and that it was probably too late for me to do much to change it
– A manager at work (not my manager, but a manager nevertheless) smugly and condescendingly mocking my mental wellbeing and then walking off, on a day dedicated to employee mental wellbeing