“Whenever I hear the phrase ‘Power of Attorney’ I always imagine someone being bitten by a radioactive lawyer” is a joke that was posted on Twitter by JerryThomas on June 24, 2010. This resembles the Spider-Man story, about being bitten by a radioactive spider.
   
A New Yorker cartoon by Pia Guerra on January 21, 2019, shows “Lawyer speaks during legal proceedings with Thor, Black Widow, and Captain America.” The lawyer says (in the caption): “Well, I was bitten by a radioactive lawyer and ended up with the power of attorney.”
     
         
Wikipedia: Power of attorney
A power of attorney (POA) or letter of attorney is a written authorization to represent or act on another’s behalf in private affairs (which may be financial or regarding health and welfare), business, or some other legal matter. The person authorizing the other to act is the principal, grantor, or donor (of the power). The one authorized to act is the agent, attorney, or in some common law jurisdictions, the attorney-in-fact.
 
Wikipedia: Spider-Man
Spider-Man is a superhero appearing in American comic books published by Marvel Comics. Created by writer-editor Stan Lee and artist Steve Ditko, he first appeared in the anthology comic book Amazing Fantasy #15 (August 1962) in the Silver Age of Comic Books. He has since been featured in films, television shows, novels, video games, and plays. Spider-Man is the alias of Peter Parker, an orphan raised by his Aunt May and Uncle Ben in New York City after his parents Richard and Mary Parker died in a plane crash. Lee and Ditko had the character deal with the struggles of adolescence and financial issues and gave him many supporting characters, such as Flash Thompson, J. Jonah Jameson, and Harry Osborn; romantic interests Gwen Stacy, Mary Jane Watson, and the Black Cat; and foes such as Doctor Octopus, the Green Goblin, and Venom. In his origin story, Spider-Man gets superhuman spider-powers and abilities from a bite from a radioactive spider; these include clinging to surfaces and ceilings, superhuman strength, speed, and agility, and detecting danger with his precognition ability called “spider-sense.”
     
Twitter     
JerryThomas
@JerryThomas
Whenever I hear the phrase “Power of Attorney” I always imagine someone being bitten by a radioactive lawyer.
10:54 PM · Jun 24, 2010·Twitter Web Client
 
Twitter         
Christian A. Dumais
@PuffChrissy
Man bitten by radioactive lawyer gets power of attorney.
10:42 AM · Dec 23, 2011·TweetDeck
 
Twitter
DRUNK HULK
@DRUNKHULK
WISH RADIOACTIVE LAWYER WOULD BITE DRUNK HULK! THAT WAY! DRUNK HULK HAVE POWER OF ATTORNEY!
4:22 PM · Oct 11, 2013·Twitter Web Client
 
Twitter
Matt Miller
@mittfu
I was bit by a radioactive lawyer,  now I have powers of attorney.
4:56 PM · Oct 27, 2014·Twitter for Android
 
Twitter
Mike Shephard
@MikeShephard
When I was a child, I was bitten by a radioactive lawyer, which is why I now have POWER OF ATTORNEY.
2:45 PM · Jun 29, 2015·Twitter for Android
 
Twitter
Duane Olds
@DuaneOlds
Whenever I hear the phrase “Power of Attorney” I always imagine someone being bitten by a radioactive lawyer.
12:05 PM · Feb 13, 2016·Twitter for Android
 
Twitter 
Josh Cooley
@CooleyUrFaceOff
I was given the power of attorney after I was bitten by a radioactive lawyer.
2:58 PM · Mar 23, 2016·Twitter for iPhone
     
Twitter
ProfessorQB
@ProfessorQB
Whenever I hear the phrase “Power of Attorney” I always imagine someone being bitten by a radioactive lawyer.
7:30 PM · Jun 28, 2016·Buffer
   
Twitter
Ratatosk
@Ratatosk4
“Did you know? If you get bitten by a radioactive lawyer, you get Superpower of Attorney.” Thus spake the #NorseSquirrelGod!
5:27 PM · Aug 16, 2018·Twitter for iPhone
 
Conde Nast Store 
TITLE
Power of Attorney
ARTIST
Pia Guerra
MEDIUM
Drawing - Drawing
DESCRIPTION
Publication: New Yorker
Image Type: Cartoon
Date: January 21st, 2019
Description: Lawyer speaks during legal proceedings with Thor, Black Widow, and Captain America.
Caption: “Well, I was bitten by a radioactive lawyer and ended up with the power of attorney.”
UPLOADED
January 14th, 2019
 
Reddit—Oneliners
Posted by u/Photog77 January 21, 2019
I was bit by a radioactive lawyer and ended up with the power of attorney.
   
Reddit—Jokes
Posted by u/ye-olde-egyptian April 14, 2020
The other day, I got bitten by a radioactive lawyer…
...I now have the power of attorney.
   
Reddit—ApparentJokes
Posted by u/DokCyber September 28, 2021
I was bitten by a radioactive Lawyer and ended up with the power of attorney
 
Twitter
Doc🐕
@DocAtCDI
I was bitten by a radioactive Lawyer and ended up with the power of attorney
7:28 PM · Jan 30, 2022·PunsByDoc
       
Twitter
Hank Daily
@BanjoFiend
Replying to @Popehat @jbarro and @sarafay
Maybe he was bitten by a radioactive lawyer?
(The New Yorker cartoon is shown.—ed.)
5:14 PM · Aug 22, 2022·Twitter for iPhone
 
Twitter
•First Dé First Sho•
@TheSolutionBaba
Bitten by a spider - Spider-Man
Bitten by a vampire - Vampire
Bitten by a radioactive lawyer - Power of attorney
9:22 PM · Nov 18, 2022·Twitter for iPhone
 
Reddit—Dadjokes
Posted by u/Mama_Bear15 November 19, 2022
I was bitten by a radioactive lawyer
Now I have the power of attorney.