“When my friend mixed onions with nitrous oxide, I didn’t know whether to laugh or cry”

Slicing onions makes people cry. Nitrous oxide (laughing gas) makes people laugh.
 
“I’ve been breathing nitrous oxide while chopping onions. I don’t know whether to laugh or cry” was posted on Twitter by Dan Rebellato on April 28, 2009. “When my mate told me hed mixed Onions with Nitrous Oxide, I didnt know whether I should laugh or cry” was posted on Twitter by sickipediabot on October 23, 2012.
 
       
Wikipedia: Nitrous oxide
Nitrous oxide, commonly known as laughing gas or nitrous, is a chemical compound, an oxide of nitrogen with the formula N2O.
 
Twitter
Dan Rebellato
@DanRebellato
I’ve been breathing nitrous oxide while chopping onions. I don’t know whether to laugh or cry.
7:54 AM - 28 Apr 2009
   
Twitter
Owen Goulding
@Gouldingo
@RealTimVine For my birthday, my mate gave me some nitrous oxide and an onion. I didn’t know whether to laugh or cry.. #I’llgetmycoat
6:57 PM - 25 Apr 2012
 
Twitter
Heather Hill
@Hell4Heather
Someone’s pumped nitrous oxide into all my onions! I don’t know whether to laugh or cry
8:52 AM - 30 May 2012
 
Twitter
Michael Daley
@theglorymill
I’ve just seen a crash between a lorry carrying nitrous oxide & another full of French onions tbh I don’t know wether to laugh or cry.
5:04 AM - 26 Jul 2012
 
Twitter
sickipediabot
@sickipediabot
When my mate told me he`d mixed Onions with Nitrous Oxide, I didn`t know whether I should laugh or cry..
6:42 PM - 23 Oct 2012
 
Twitter
Tradesmen On Time
@tradesmenontime
Did you hear Chris mixed onions with Nitrous Oxide? He didn’t know whether to laugh or cry. #dadjoke #fridayfunny
5:00 PM - 7 Oct 2015
 
Twitter
Nigel Winn
@nniw
When my mate told me he`d mixed Onions with Nitrous Oxide, I didn`t know whether I should laugh or cry..
10:23 AM - 24 Oct 2015