“A guy walks into a bar…” is a typical form of what has been called the “bar joke.” Sometimes the bar joke is mixed with a library joke.
     
“A man walks into a library and says, ‘Do you have any books on poor eyesight?’ ‘No, we don’t,’ replies the barman” was posted on Twitter by John Edgar on December 20, 2015. “A man walks into a library and says, ’ Do you have any books on poor eyesight?’ ‘No,we don’t.’ ... http://bit.ly/1P0Olr3 via @sickipedia” was posted on Twitter by Fresh Stand Up on December 30, 2015. The joke originated on the Sickipedia website.
   
   
Twitter
John Edgar
@springviewer
A man walks into a library and says, ” Do you have any books on poor eyesight?”
“No,we don’t.” replies the barman.
7:28 PM · Dec 30, 2015·Facebook
   
Twitter
Fresh Stand Up
@FreshStandUp
A man walks into a library and says, ” Do you have any books on poor eyesight?”“No,we don’t.” ... http://bit.ly/1P0Olr3 via
@sickipedia
7:49 PM · Dec 30, 2015·twitterfeed
   
Twitter
Bob Kostic
@causticbob
A man walks into a library and asks, “Do you have any books on poor eyesight?”
“No, we don’t,” replies the barman.
7:52 PM · Jun 26, 2016·Twitter Web Client
 
Reddit—Jokes
Posted by u/minerfromwa March 15, 2018
A man walks into a library
And asks if there are any book’s on poor eyesight
I haven’t seen any, says the barman
     
Twitter
3AM
@3AM_Jokes
A man walks into a library and asks, “Do you have any books on poor eyesight?”... “NO WE DON’T ” replies the barman.
3:46 PM · Sep 15, 2020·IFTTT
 
Reddit—Dadjokes
Posted by u/VERBERD August 26, 2021
A man walks into the library and asks, “Do you have any books on poor eyesight?”
“NO, we don’t!!” Replies the barman.