“What do you call an arrogant criminal walking down stairs?”/“A condescending con descending.”

A popular pun is:
 
Q: What do you call an arrogant criminal walking down stairs?
A: A condescending con descending.
 
“A condescending con descending” was a “Cryptoquip” puzzle answer published in many newspapers in April 2010. The joke has been printed on many images.
 
     
25 April 2010, Indianapolis (IN) Star, “Cryptoquip” (puzzle), Indy Sunday, pg. 22, col. 4:
WHEN AN OH-SO-SUPERIOR INMATE GOES DOWN A LADDER, PEOPLE OUGHT TO CALL HIM A CONDESCENDING CON DESCENDING.
 
Twitter
Michael Keshani‏
@MichaelKeshani
Replying to @Gingers4Limpar
@Gingers4Limpar What do you call an aloof former prisoner walking down the stairs? A condescending con descending.
6:47 PM - 10 Jan 2013
 
Twitter
Global Translations‏
@gtranslationsbr
NEW DEFINITIONS: Condescending (Con Descending): A prisoner in an elevator. #UxbridgeEnglishDictionary
6:01 AM - 21 Jan 2013
 
Twitter
copeland, j.‏
@thedangerface
Replying to @jaredjetpack
@jaredjetpack Condescending, con descending. like, u know, if a convict was walking down a staircase with some snarky swagger or shut up
9:05 PM - 5 Jun 2013
 
Twitter
Salman Farooq‏
@ThenSalmanSaid
A criminal walking down stairs who thinks he’s smarter than you is a condescending con descending
3:01 PM - 16 Oct 2013
 
Reddit—Jokes
What do you call a snobbish criminal going down a flight of stairs? (self.dadjokes)
submitted January 9, 2014 by AnOwlOfSorts
A condescending con descending.
   
BuzzFeed
67 Jokes That Will Make You Go “Ba Dum Tss”
Three men walk into a bar… Ouch!
Posted on April 18, 2014, at 3:45 p.m.
Tanner Greenring
BuzzFeed Staff
(...)
30. What do you call a stuck-up criminal going down some stairs? A condescending con descending.
 
4 December 2014, News Mail (Bundaberg, Queensland), “Last Laugh,” pg. 13:
What do you call a snobby criminal walking down the stairs? A condescending con descending.
 
Google Books
Word Play:
A cornucopia of puns, anagrams and other curiosities of the English Language
By Gyles Brandreth
London, UK: Hodder & Stoughton
2015
Pg. ?:
What do you call a patronising confidence trickster coming down the stairs?
A condescending con descending.
 
Reddit—Jokes
What do you call an arrogant prisoner walking down the stairs?
submitted February 14, 2015 by anonymizeme
Condescending. 😉
(...)
COMMENTS
]Alexm920
The version I heard doubled down, that is:
Q: “What do you call a convicted criminal on a staircase that won’t stop patronizing you?”
A: “A condescending con descending”
   
The Grammatical Nerd
Top 60 Greatest Puns of All Time
Posted on October 4, 2015 by Anay Mridul
(...)
6. What do you call a snobbish criminal going down the stairs? A condescending con descending.
 
Reddit—Jokes
What do you call a snobbish criminal falling down the stairs?
submitted October 23, 2016 by [deleted]
A condescending con descending.
 
Reddit—Jokes
What do you call an arrogant criminal walking down stairs?
submitted June 2, 2017 by Rucker9
A condescending condescending