Back in the day, the story got around that a particular M 404 Captain picked up the mike and notified the tower that "delta is on the other end of the runway" in atl, after landing.
Then the delta flight broadcast: " I wasnt going to say anything Southern, but you just landed on the taxiway."
Later in my career I saw two delta dc 8's in Atl, on a runway, both having their nose in the air at a 45 degree angle, both still on the ground. One landing, one taking off. Noone said a word.