In my now long-ago English teaching days I naturally used folksong as part of my curriculum. I was halfway thru a lesson about sudden death on the track [Wreck of the Old 97, Carter Family's FFV(Engine·143), &c], when I realised there was a girl in the class who had lost her father in a car crash a few days before. I still go hot & cold with horror when I remember it, tho it must be nearly 40 years ago.