Coworker on a bus after nightshift Waltham to Boston. He said he was sick in a serious way. Doctors baffled and he feeling worse by the day. I told him not to worry because he'd be better soon. They always figure it out. He died. AIDS. Several years later at an AIDS hospice I heard the rattled breath at deaths door. Barely able to hold his cane he stood then struggled mighty to make it to his grave.