“Sometimes I drink water just to surprise my liver”

“Sometimes I drink water (just) to surprise my liver” is a jocular drinking saying that has been printed on many images. “Today I am gonna surprise my liver, I’m gonna drink water!” was cited on Twitter on August 21, 2010.
   
“Sometimes I drink water to surprise my liver” went viral on Twitter on May 21, 2012.
 
“Sometimes when I’m bored, I drink some water just to shock my liver” is a similar saying.
 
 
Twitter
Ana Cabo Ibiza
@Anaroxy33
Today I am gonna surprise my liver, I’m gonna drink water!
1:54 PM - 21 Aug 2010
 
Twitter
Andy Perry
@andypurry
Sometimes, I surprise my liver: I drink water. LOL
7:33 AM - 3 Aug 2011
 
Twitter
Phil ΘCHWΛTΔ Odaloh
@Phil_Odaloh
today i’m taking alot of water just to surprise my liver.
#truestory
12:29 PM - 6 Aug 2011
 
Twitter
Carrie
@CarolFitzmwangi
#TweetOfTheWeek RT @Carmstastic: Sometimes I drink water to surprise my liver.
1:15 PM - 21 May 2012
 
Google Groups: Dosco Class of 59
FW: Cheers
Lalit Mehra
5/5/13
(...)
Sometimes I drink water to surprise my liver. -Anonymous
 
Google Books
He Drank, and Saw the Spider:
An Eddie LaCrosse Novel
By Alex Bledsoe
New York, NY: A Tor Book
2014
Pg. 81:
“Why don’t you try drinking water instead?” one of his companions suggested.
 
“Oh, I do sometimes, just to surprise my liver!”
 
The two men laughed again.
   
Google Books
Roadmap into a Twisted Mind
By Bruno Gagnon
Victoria, BC: FriesenPress
2014
Pg. 153:
Sometimes I drink water to surprise my liver.