“The hardest part of making skimmed milk is throwing the cows across the lake”

“Skimmed milk” has nothing to do with “stone skimming,” but there are jokes.
       
“The hardest part of making skimmed milk is throwing the cows across the lake” was posted on Twitter by English writer and stand-up comedian Gary Delaney on April 30, 2016.
     
         
Wikipedia: Skimmed milk
Skimmed milk (British English), or skim milk (American English), is made when all the milkfat is removed from whole milk. It tends to contain around 0.1% fat.
 
Wikipedia: Stone skimming
Stone skipping and stone skimming are considered related but distinct activities: both refer to the art of throwing a flat stone across the water in such a way (usually Sidearm) that it bounces off the surface. The objective of “skipping” is to see how many times a stone can bounce before it sinks into the water; the objective of “skimming” is to see how far a bouncing stone can travel across the water before it sinks into the water.
 
Twitter
Gary Delaney
@GaryDelaney
The hardest part of making skimmed milk is throwing the cows across the lake.
8:34 PM · Apr 30, 2016·Twitter for iPhone
       
Twitter
Matt Aylott
@mattaylott
The hardest part of making skimmed milk is throwing the cows across the lake
1:16 PM · May 7, 2016·Twitter Web Client
   
Twitter
savanna
@brrSav
The hardest part about making skimmed milk is throwing the cows across the lake
5:45 AM · May 29, 2016 from Brigham, England·Twitter for Android
   
Twitter
Bob Kostic
@causticbob
The hardest part about making skimmed milk must be throwing the cows across the lake
5:27 PM · Sep 9, 2016·Twitter Web Client
 
Twitter
Tom
@httpstoast
Hardest part about making skimmed milk is throwing the cows across the lake.
7:45 AM · Jun 1, 2018·Twitter for iPhone
     
Reddit—Dadjokes
Posted by u/Upsidedownsquidhead May 29, 2019
You know what’s the hardest part of making skimmed milk?
Throwing the cows across the lake.
   
Reddit—Jokes
Posted by u/R_xch June 25, 2019
What’s the hardest part about making skimmed milk?
Skipping the cows across the pond
 
Twitter
Broken Puppet☕
@java_assassin
Hardest part of making skimmed milk is throwing the cows across a lake.
8:38 PM · Mar 30, 2020·Twitter for Android
 
Reddit—Oneliners
Posted by u/jtrier1 October 29, 2020
Hardest part of making skimmed milk must be throwing the cows across the lake
       
Reddit—Dadjokes
Posted by u/Degtyrev November 20, 2020
What’s the hardest part about making skimmed milk?
Throwing the cow across the lake
 
Reddit—Oneliners
Posted by u/Ochib February 14, 2022
The hardest part of making skimmed milk is throwing the cows across the lake.