I recall long ago hearing a CW title that takes a humourous twist on this
"I've got tears in my ears (from lying on my back in my bed while I cry over you)"
Speaking as one who has sung folk music of the British Isles and the US the subjects of "Drunkness, audultery, violence, murder" are things that people made songs about and many of them were collected and preserved. Here are a few
Adultery: "Matty Groves" is one of the Great Old songs about that, along with "The House Carpenter/the Daemon Lover"
If we include betrayed love and false love and young men/women having their way then leaving there are such songs as "Blow the Candles Out", "Cold Haily Windy Night", "The Blacksmith" "The Trooper and the Maid" and "
Murder- (does that count killings in battle as well as love triangles, highwaymen and assorted other causes?) "Lily of the West" has a false woman and murder and a trial, "False Lamkin" is rather gruesome, "Bonnie George Campbell" and "The Bonnie Earl of Morey" don't come home from battle "Jesse James" gets shot in the back by the "dirty little coward/ that shot Mr. Howard/ and laid poor Jesse in his grave" while "The Streets of Laredo" had a young cowpoke gunned down in a duel; "Captain Kidd" (hanged for piracy) and I mustn't forget "Lord Randall" where he is poisoned by his sweetheart with "Eels boiled in brew"
There's plenty of accidental death by train wrecks "Casey Jones" and "The Wreck of the Old 97"; overwork "John Henry"; accidents with a horse "Blood on the Saddle", drowning at sea "The Golden Vanity", "Henry Martin","Sir Patrick Spence"; being shot by accident "The Great Silkie" (which also has unmarried procreation between the Selkie and the human woman)
Then there's drink and its effects of which is a very popular topic for songs, starting with "John Barleycorn" which compares harvesting grain and brewing ale to murder, "What Do You Do With a Drunken Sailor?" "Blow the Man Down" "The Jug of Punch" "The Old Dun Cow" "Nancy Whiskey"
Just running over a few others that I know of, there's the great Russian folksong "Stenka Razin" in which the leader of the bandits dallies with a Persian princess until his men object because they're not raiding any more. So he throws her into "Mother Volga" as an offering. "Na!" (I'm told it doesn't really mean *splash*, but it could
These are some of the subjects that people like to make songs or stories about, and that's the way it is.
Here is one site for some of the songs I mentioned plus many more (it's a terrific site) http://www.contemplator.com/folk.html
Here's a version of "Stenka Razin"http://www.youtube.com/watch?v=gLd9vy3iCZs
If wanted I can provide more songs/lyrics/melodies