“I think I’ve been eating too much salmon recently. I keep running up down escalators”

If you eat too much salmon, you don’t necessarily turn into a salmon and start spawning. This joke was posted on Twitter by Sickipedia Official on December 28, 2013:
 
“I think I’ve been eating too much salmon over Christmas. I’ve just tried to run up an escalator that was going down.”
   
         
Wikipedia: Salmon
Salmon /ˈsæmən/ is the common name for several species of ray-finned fish in the family Salmonidae. Other fish in the same family include trout, char, grayling and whitefish. Salmon are native to tributaries of the North Atlantic (genus Salmo) and Pacific Ocean (genus Oncorhynchus). Many species of salmon have been introduced into non-native environments such as the Great Lakes of North America and Patagonia in South America. Salmon are intensively farmed in many parts of the world.
 
Typically, salmon are anadromous: they hatch in fresh water, migrate to the ocean, then return to fresh water to reproduce. However, populations of several species are restricted to fresh water through their lives. Various species of salmon display anadromous life strategies while others display freshwater resident life strategies. Folklore has it that the fish return to the exact spot where they hatched to spawn; tracking studies have shown this to be mostly true.
 
Twitter
Paul Kelly
@Nobbyfolk
I think I’ve been eating too much salmon over Christmas.  I’ve just tried to run up an escalator that was going down.
7:49 AM - 28 Dec 2013
   
Twitter
Phil Phillips
@PhilPhillips3rd
Think I’ve been eating too much salmon over Christmas.
Just tried to run up an escalator that was going down.
7:57 AM - 28 Dec 2013
 
Twitter
Sickipedia Official
@sickipedia
I think I’ve been eating too much salmon over Christmas.
I’ve just tried to run up an escalator that was going down.
#sickipedia
10:31 AM - 28 Dec 2013
   
3 January 2014, Birmingham (UK) Mail, “Digging for M6 gold has exacted its toll,” pg. 17:
ATE too much salmon over Christmas. I’ve just tried to run up an escalator that was going down.
     
Reddit—Jokes
I think I ate too much salmon over Christmas
submitted December 28, 2016 by janeybabygoboom
I just tried to run up an escalator that was going down.
   
Google Books
3000 Jokes, 2997 Laughs
By Mike Haskins
London, UK: Portico
2017
Pg. ?:
Harry has too much salmon in his diet. You can’t usually tell but if he ever sees an escalator, he tries to run up it in the wrong direction.
 
Twitter
John
@JFD1960
I think I’ve been eating too much salmon recently. I keep running up down escalators
6:00 PM - 4 Apr 2018