A Lesson Learned

A pair of tombstones at the old Ashgrove Cemetery Georgetown, Ontario. At the front lies William Glover, who was 98 (and two months) when he died in 1883. Behind him are the remains of David A. McNeely, who would have lived longer than his 24 years if he'd stayed well away from the Credit River on July 19, 1931. There's a moral here . . . hmm, now what could it be?