“I’m thinking about running a marathon again” (joke)

A joke about running the marathon was cited on reddit in November 2015:
 
Me: “I’m thinking about running a marathon again.”
Her: “Wow, you have ran a marathon before?”
Me: “No, but I have thought about it.”

 
The joke relies on the misplaced word “again. The person is really “thinking again” about running a marathon.
 
 
reddit
Me: “I’m thinking about running a marathon again” (self.Jokes)
submitted November 16, 2015 by AREYOUFUCKING_SORRY
Her: “Wow, you have ran a marathon before?”
Me: “No, but I have thought about it.”
 
Twitter
Fresh Stand Up
‏@FreshStandUp
“I’m thinking of running a marathon again,” I told my friend.“You’ve run a marathon before?” s… http://bit.ly/1HUKsBi  via @sickipedia
9:23 PM - 16 Nov 2015
 
Twitter
Dan The Funny Man
‏@FunnyFirehose
“I’m thinking of running a marathon again.” I told my friend. http://bit.ly/1Mjlfoq  #jokes
12:09 AM - 17 Nov 2015
 
Twitter
Sickipedia Official
‏@sickipedia
“I’m thinking of running a marathon again,” I told my friend.“You’ve run a marathon before?” she asked, with a… http://bit.ly/1X4obI8
6:11 AM - 17 Nov 2015
 
Twitter
PlanetMarathon
‏@PlanetMarathon
RT @ApsOps: Me: I’m thinking of running a marathon again. @geekykaran: You’ve run a marathon before? Me: No, but I’ve thought about it.
4:10 AM - 18 Nov 2015