“Two bacteria 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 popular science joke is:
   
“Two bacteria walk into a bar. The bartender says, ‘We don’t serve bacteria in this bar.’ The bacteria say, ‘But we work here. We’re staph!’”
 
The joke has been cited in print since at least March 2009. Brian Malow, self-proclaimed as “Earth’s Premier Science Comedian,” popularized the joke in videos from December 2008 and November 2009.
 
         
YouTube
Brian Malow: Science Laughs
Wonderfest Science
Uploaded on Dec 18, 2008
Brian Malow makes us laugh at Science Laughs, Bay Area Science Expo, Wonderfest 2008
http://sciencecomedian.com/
5:50
“Two bacteria walk into a bar. The bartender says, ‘We don’t serve bacteria in this bar.’ The bacteria say, “But we work here! We’re staph!’”
 
Walks Into A Bar Jokes
TUESDAY, MARCH 17, 2009
POSTED BY DOMENIC MAMMARELLA AT 3:45 PM
(...)
Two bacteria walk into a bar, the bartender says “we don’t serve bacteria in this bar”. The bacteria say “but we work here, we’re staph!”.
 
Twitter
Chris
‏@chris_suspect
@bryantma @quarsan 2 bacteria walk into a bar, bartender says we don’t serve bacteria, bacteria reply, but we’re staph! 😊
11:48 AM - 20 Mar 2009
 
YouTube
‘A Virus Walks Into a Bar…’ and Other Science Jokes - Brian Malow
ForaTv
Uploaded on Nov 20, 2009
Complete video at: http://fora.tv/2009/11/08/Science_Lau...
Science comedian Brian Malow jokes that a virus is “the ultimate David and Goliath” when compared with humans. He then rattles off a series of science-related jokes. “Schrodinger’s cat walks into a bar, and doesn’t.”
1;40
“Two bacteria walk into a bar. The bartender says, ‘We don’t serve bacteria in this bar.’ The bacteria say, ‘But we work here.We’re staph!’”
 
Twitter
David Vernon
‏@eScapesPhoto
Some bacteria walk into a bar , the bartender says we don’t serve your kind here. The bacteria say “But we work here. We’re staff.”
10:28 AM - 23 Nov 2009
 
Google Groups: k12.ed.science
science humor
Juan M
3/23/10
So a couple of bacteria walk into a bar.  The bartender see’s them and says, “I’m sorry but we don’t serve bacteria here.”  The bacteria reply, “It’s ok, we’re staph.”
 
halfbakery
Two bacteria walk into a bar. The bartender says “We don’t serve bacteria in this bar.” The bacteria say “But we work here! We’re staph.”
— hippo, Sep 30 2010
   
You Must Be From Away
2 bacteria walk into a bar….
Posted on 29 October, 2011 by jb
The bartender says “We don’t serve bacteria”
Bacteria says “But we work here – we’re staph…”
 
YouTube
Two Bacteria Walk Into a Bar
ForaTv
Published on Nov 22, 2013
Full video from Wonderfest available at: http://fora.tv/2009/11/08/Science_Lau...
Brian Malow performs science comedy at Wonderfest 2009.