“A subatomic particle refused to pay bus fare. It just lepton”

“Lepton” (a particle) sounds like “leapt on,” leading to several puns. “How did the electron travel to london? It just lepton the train” was posted on Twitter on August 16, 2011. “How did the electron catch the bus? It just lepton…” was posted on Twitter on September 12, 2011.
 
“Did you hear the one about the subatomic particle that refused to pay the bus fare? It just lepton” was posted on Reddit on July 28, 2016.
 
   
Wikipedia: Lepton
A lepton is an elementary, half-integer spin (spin 1⁄2) particle that does not undergo strong interactions. Two main classes of leptons exist: charged leptons (also known as the electron-like leptons), and neutral leptons (better known as neutrinos). Charged leptons can combine with other particles to form various composite particles such as atoms and positronium, while neutrinos rarely interact with anything, and are consequently rarely observed. The best known of all leptons is the electron.
   
Twitter 
Peter DickINson
‏@Diffractionman
@DavidHolderness How did the electron travel to london? It just lepton the train.
1:59 PM - 16 Aug 2011
 
Twitter
Hautest Mess
‏@longlostlohan
LOL Annabelleeeeeee )’: “@AnnabelleKayy: How did the electron catch the bus? It just lepton…”
4:49 PM - 12 Sep 2011
 
Twitter
Robert Sale
‏@eccl12
Detective: “yes, but how did that electron get all the way up there?” Rookie: “looks like it just lepton, sir”
8:27 AM - 9 Nov 2012
 
reddit
Did you hear the one about the subatomic particle that refused to pay the bus fare?
submitted July 28, 2016 by JoeBidenHisTime
It just lepton.
 
Twitter
EmilyJaquelineom
‏@EmilyJaquelineo
Did you hear the one about the subatomic particle that refused to pay the bus fare? It just lepton. #mademyday
7:52 AM - 28 Jul 2016
 
Twitter
KianaCharlenee
‏@lyd9ia
Did you hear the one about the subatomic particle that refused to pay the bus fare? It just lepton. #haha
7:58 AM - 28 Jul 2016