“A guy walks into a bar…” is a typical form of what has been called the “bar joke.” A popular math joke has been cited in print since at least 2008:
 
“An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders half a beer. The third, a quarter of a beer. The bartender says ‘You’re all idiots,’ and pours two beers.”
 
The bartender knows his math. “You’re all idiots!” is sometimes replaced with “Know your limits!”
 
“A mathematician walks into a bar and orders ten times the drinks of everyone else…” is another mathematician bar joke.
       
 
Rosetta@home
I wish i was helicase…   
agge
Posted 30 Jan 2008 23:49:05 UTC
more like this, the dorkier the better.
 
An infinite number of mathematicians walk into a bar. The first orders a beer. The second orders half a beer. The third orders a quarter of a beer. Before the next one can order, the bartender says, “You’re all assholes,” and pours two beers.
       
Boktai Online
SCIENCE!
Deleted User
Feb 4 2008, 10:14 PM
(...)
An infinite number of mathematicians walk into a bar. The first orders a beer. The second orders half a beer. The third orders a quarter of a beer. Before the next one can order, the bartender says, “You’re all assholes,” and pours two beers.
     
XF
Corny Math/Science Jokes
hellomeow
May 17, 2008 at 2:55am
An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders half a beer. The third, a quarter of a beer. The bartender says “You’re all idiots,” and pours two beers.
 
Google Groups: alt.fan.cecil-adams
An infinite number of mathematicians
darkon
11/19/08
An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders half a beer. The third, a quarter of a beer. The bartender says “You’re all idiots”, and pours two beers.
 
God Plays Dice
19 NOVEMBER 2008
Worst math joke I’ve heard today
A joke that I’ve seen in several places today (first from my friend Karen): “An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders half a beer. The third, a quarter of a beer. The bartender says “You’re all idiots”, and pours two beers.”
 
I can “improve” this joke. An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders two beers. The third orders three beers, and so on. The bartender takes a twelfth of a beer from the first one and they all walk away happy.
 
(Why, you ask? Because ζ(-1)=-1/12.)
Posted by Michael Lugo at 7:25 PM
 
Google Groups: alt.math
haha
Art
1/3/09
An infinite number of mathematicians walk into a bar. The first one orders a beer, the second orders half a beer the third asks for a quarter of a beer. Before the next one can speak, the bartender says “You’re all idiots”, and pours two beers.
 
Google Groups: sci.math
joke
Rupert
2/9/09
An infinite number of mathematicians walk into a bar. The first mathematician asks for a beer. The second mathematician asks for half a beer. The third mathematician asks for a quarter of a beer. The bartender says “You’re all idiots”, and pours two beers.
 
Nerdy Jokes
April 23, 2014
Mathematician Madness
By LC
Infinite mathematicians walk into a bar. The first orders one drink. The second orders half a drink. The third orders a quarter of a drink. The fourth one orders an eighth of a drink.
 
The bartender pours two drinks and says “You mathematicians just don’t know your limits.”
   
reddit
An infinite number of mathematicians walk into a bar (self.Jokes)
submitted June 5, 2014 by Chuck_Schuldiner
The first one orders a beer, the second one orders a half a beer, the third orders a quarter of a beer, and this trend continues on for some time. After a while, the bartender gets fed up and hands them 2 beers, shakes his head and says, “You mathematicians just don’t know your limits.”
 
Google Books
The Magic of Math:
Solving for X and Figuring Out Why
By Arthur Benjamin
New York, NY: Basic Books
2015
Pg. 284:
Here’s a joke that only mathematicians find funny. An infinite number of mathematicians walk into a bar. The first mathematician says, “I’d like one glass of beer.” The second mathematician says, “I’d like half a glass of beer.” The third mathematician says, “I’d like a quarter of a glass of beer.” The fourth mathematicians says, “I’d like an eighth of a glass…” The bartender shouts, “Know your limits!” and hands them two beers.