I managed to get two copies of this. I was wielding a classy cane and fighting enemies in the Cellar Door.
I had both High Brow and Expensive Smoke active when I learned the technique, but Al had previously tried High Brow without finding anything. My deck was Ghoul Bite, Brutality, Punch, Swordplay and Leaping Dodge, but one of the two instances I learned was after just Punch and Swordplay used in the fight.
At least with a cane equipped, combat message does not seem to change following another melee tech. And the message was with both High Brow and Expensive Smoke still active.