Kurt Vonnegut, Jr's "Next Door" (flash fiction, free): Sometimes, "being helpful" is extremely inadvisable!
8 year old Paul was home alone, & extremely agitated by loud domestic quarrel next door. So he called up DJ on radio show currently on in quarreling home, with a message from man next door to his wife requesting patch up.
Only the quarrel next door wasn't just between man & wife, & the dedication on radio had an extremely unpleasant consequence...
Fact sheet.First published: 1991. Where?
Read full text at Scribd.
David Cooperman has a play adapted from this story & with the same title. Limited preview of play is available at Google Books.
Andrew Silver has done a 24 minute movie adaptation with the same title. Sample (but not whole video) available here.
BBC seems to have done a radio adaptation of the story too. But this doesn't appear to be online.
Related: Stories of Kurt Vonnegut.