“I stepped on a cornflake this morning. I’m a cereal killer now”

“I stepped on a cornflake this morning. I’m a cereal killer now”—a pun on “serial killer”—is a joke that has been printed on many images.
 
“Oh. My. God. I stepped on a Corn Flake! Im a cereal killer!” was posted on Twitter on August 18, 2009. “I stepped on a cornflake this morning! I’m a cereal killer” was posted on Twitter on December 4, 2009. “I stepped on a cornflake this morning.. I’m a cereal killer now!” was posted on Twitter on January 1, 2010.
     
   
Twitter
Rafael Soto
‏@RafSoto
Oh. My. God. I stepped on a Corn Flake!
Im a cereal killer!
9:47 PM - 18 Aug 2009
 
Twitter
Zen Jar
‏@zenjar
I stepped on a cornflake this morning! I’m a cereal killer. (via #zenjar )
8:21 AM - 4 Dec 2009
 
Twitter
Lynn Murphy
‏@smurfdub
I stepped on a cornflake this morning.. I’m a cereal killer now!
11:48 AM - 1 Jan 2010
 
Twitter
Miley.
‏@Mileyz_Stewart
I stepped on cornflakes this morning..i’m cereal killer now.
2:03 AM - 4 Jan 2010
   
9 September 2010, Chicago (IL) Tribune, “raNdOm” by TheMash, pg. 24:
I stepped on a cornflake. Does that mean I’m a cereal killer?
     
The Redhead Riter
May 1, 2013
Looking At The Happiness Inside Me Now
by SHERRY RITER in HAPPINESS,LESSONS OF LIFE,SHERRY
(...)
When I saw this humorous little saying, “I stepped on a cornflake this morning – I’m a cereal killer now,” I seriously laughed out loud. Cornflakes have always been my most favorite cereal. I actually used to eat a HUGE bowl every night before I went to bed. Well, that had to end when I was forced to go grain free, but this joke is now on my list of my most favorite funnies. I know it is simple, but so am I in many ways – witty, intelligent, addictive and simply complicated. LOL
 
Reddit—Kikpals
28 [F4M] I stepped on a Cornflake, and now I am a cereal killer (self.Kikpals)
submitted June 30, 2015 by RememberWhatIToldYou
 
Reddit—Dad Jokes
It was an awful morning when I stepped on a cornflake… (self.dadjokes)
submitted August 23, 2016 by nate6259
Now I’m a cereal killer.