“Why couldn’t the pig pay his bill?”/“He was a little shoat.”

A pig riddle is:
 
Q: Why couldn’t the pig pay his bill?
A: He was a little shoat (short).
     
The “shoat”/“short” joke has been cited in print since at least 2007.
 
       
Klosi Jokes   
Category: Pig jokes
Date Added: 11/10/2007
Joke: Why couldnt the pig pay his bill? He was a little shoat.
 
Twitter
wilhemina_wears‏
@wilhemina_wears
Why couldn’t the pig pay his bill? He was a little shoat.
5:52 PM - 17 Sep 2009
 
Twitter
aloma_beschorne‏
@aloma_beschorne
Why couldn’t the pig pay his bill? He was a little shoat.
1:36 AM - 31 Oct 2009
   
Google Books
Sensible Nonsense.. Frank’s Comic Pack:
Humour Pack Series
By Frank Paul
BookBaby
2014
Pg. ?:
Why couldn’t the pig pay his bill? He was a little shoat.
 
Twitter
Lucky Score‏
@LuckyScoreNet
Why couldn’t the pig pay his bill?
He was a
little shoat.
#Joke from #PigJokes in #Jokes,  #Humor and #Satire
7:24 PM - 6 Sep 2017