“I quit my job working at a helium factory. I refuse to be spoken to in that tone of voice” is a joke that has been printed on several images. The joke has been cited in print since at least 2008 and has been credited to Canadian comedian Stewart Francis.
     
     
Wikipedia: Stewart Francis
Stewart Francis is a Canadian comedian, actor and writer. In addition to his work in Canada and the US, he frequently tours in the UK and appears on British television. Both of Francis’ parents are British.
 
Google Groups: Moviesite-za
The Moviesite updates, 1 August 2008
Ian Douglas
8/1/08
(...)
I quit my job last week at the helium factory. I just didn’t like being spoken to in that tone of voice.
   
Twitter
lee‏
@CartBozman
@eltonmcmanus @shc1970 I just quit my job at a helium factory. I refuse to be spoken to in that tone of voice 😉
4:28 AM - 24 Jan 2009
 
Twitter
Jamie Badman‏
@badmanj
I quit my job last week at the helium factory.
I just didn’t like being spoken to in that tone of voice.
12:44 AM - 19 May 2009
   
Twitter
Simon van Wyk‏
@simonstreep
“I quit my job at the helium factory, I refuse to be spoken to in that tone…” Stewart Francis
3:37 AM - 12 Jan 2010
 
17 April 2010, The Guardian (London, UK), “The Guide: Comedy: Stewart Francis Milton Keynes” by James Kettle, pg. 40:
For those of us nourished on 1980s children’s TV, the words “Stewart Francis” can’t help but bring to mind the horrifying spectre of an unconvincingly enthusiastic, wilfully camp gentleman claiming that he was ready to (for some reason) “crush a grape”. Fortunately, this is a different Stewart Francis altogether - one who’s Canadian, and one who’s funny. This Francis is a one-liner merchant: everything is kept as pithy as possible, but the quality control is set remarkably high, resulting in a set packed with killer lines. While the zingers come very frequently, Francis relies on a cynical, downbeat delivery that makes his silliest jokes (sample line: “I quit my job in a helium factory. I refused to be spoken to in that tone”) deliciously surprising.
     
Reddit—Jokes
Quit my job at the helium factory today
submitted May 19, 2015 by JaquesLeGouch
I refuse to be spoken to in that tone
 
Twitter
Shit Jokes‏
@ShitJokes
I quit my job at the helium factory today.
I refuse to be spoken to in that tone of voice.
2:30 PM - 27 Nov 2015
 
Reddit—Jokes
Just quit my job at the helium factory.
submitted May 26, 2017 by arranskye
I will not be spoken to in that tone of voice.
 
Reddit—Jokes
I quit my job working at a helium factory
submitted September 24, 2017 by tooheys_new
I refuse to be spoken to in that tone.