“How did the Irish jig get started?”/“Lots of beer and only one bathroom.”

A popular St. Patrick’s Day joke about Irish dancing is:
 
Q: How did the Irish jig get started?
A: Lots of beer and only one bathroom.
 
The joke has been cited in print since at least 1996.
 
   
Wikipedia: Jig
The Jig (Irish: port) is a form of lively folk dance in compound meter, as well as the accompanying dance tune. It developed in 16th-century England, and was quickly adopted on the Continent where it eventually became the final movement of the mature Baroque dance suite (the French gigue; Italian and Spanish giga). Today it is most associated with Irish dance music, Scottish country dance and the Métis people in Canada.
 
Kith and Kin (Marshfield Area Genealogy Group, Marshfield, WI)
March/April 1996
Pg. 5:
HOW IRISH ARE YOU?
TEST YOUR I. Q. (IRISH QUOTIENT)
(...)
7. How did the Irish jib get started?
Answers:
7. Lots of beer and too few bathrooms!
 
Google Groups: alt.personals.ads
ST. PATRICK COMES OUT OF THE CLOSET!
Marsha Ann Folks
3/4/96
(...)
Q:  How did the Irish Jig get started?
A:  Lots of beer and only one bathroom.
 
Google Groups: alt.collecting.beanie-babies
Test Your IQ (Irish Quotient)
deb-florida
3/17/99
(...)
7. How did the Irish Jig get started?
Lots of beer and too few restrooms!
 
Google Groups: n.bizarre
Saint Paddy’s Day Humor
.(JavaScript must be enabled to view this email address)
3/17/01
(...)
Q.  How did the Irish Jig get started?
A.  Too much to drink and not enough restrooms!
 
Facebook
The Irish magpie
December 14, 2012 ·
Q: How did the Irish Jig get started?
A: Too much to drink and not enough restrooms!
 
Twitter
m loves zayn. ɤ
‏@zouiallhes
@NiallOfficial How did the Irish Jig get started?2 much 2 drink & not
enough bathrooms!! follow me 🍻🍀
10:46 PM - 17 Oct 2015
 
Twitter
Frank Bunton
‏@TwistinFrank
How did the Irish Jig get started?
Too much to drink and too few restrooms!
4:45 AM - 5 Mar 2016