“A cabbage and celery walk into a bar…” (bar joke)

“A guy walks into a bar…” is a typical form of what has been called the “bar joke.” A food version is:
   
“A cabbage and celery walk into a bar and the cabbage gets served first because he was a head.”
 
The “head of cabbage” pun has been cited in print since at least March 2017.
   
       
IGoPayGo
MARCH 16, 2017 BY ADMIN
Clean Jokes that Gets a Laugh Every Time
(...)
A cabbage and celery walk into a bar and the cabbage gets served first because he was a head.
 
Reddit—Jokes
A list of puns
submitted July 10, 2017 by Who_cares_about_name
A cabbage and celery walk into a bar and the cabbage gets served first because he was a head.
     
sunny skyz
58 Funny Puns You Can’t Wait To Use
July 14, 2017
(...)
56. A cabbage and celery walk into a bar and the cabbage gets served first because he was a head.
 
Twitter
Ben Bondoc‏
@benbondoc
Your Dad Joke for the day:
A cabbage and celery walk into a bar and the cabbage gets served first because he was a head.
8:00 PM - 22 Jul 2017