“Why did the balloon burst?”/“Because it saw a lolly pop.”

A lollipop riddle is:
 
Q: Why did the balloon burst?
A: Because it saw the lollipop.
 
The joke has been cited in print since at least 1984.
 
 
15 April 1984, The Sun-Herald (Sydney, Australia), pg. 84 (?), col. 4:
Q: Why did the balloon burst?
A: Because it saw the lollipop.
Andy (9), Hall Road, Hornsby.
 
14 November 1998, Anniston (AL) Star, “Yak Yuks,” pg. 6B, col. 5:
WHY DID THE BALLOON BURST?
Because it saw a lollypop.
 
12 December 2005, Indiana (PA) Gazette, “Mighty Funny’s Mini Jokes,” pg. 20, col. 2:
Otis: Why did the balloon burst?
Olive: Because it saw a lollypop!
   
Discworld Stamps
Poor Jokes
Post by Doc Brown » Thu Apr 05, 2007 12:26 pm
(...)
Q. Why did the balloon burst? A. Because it saw the lolly pop!
 
Twitter
YesYechYes
‏@sriharsha73
Q. Why did the balloon burst?
A. Because it saw a lolly pop! #joke
5:04 AM - 16 Jan 2010
 
Twitter
nana
‏@nanawin
Q. Why did the balloon burst?
A. Because it saw a lolly pop!
11:31 AM - 22 Feb 2010
 
Google Books
Just Jokes:
A Collection of Kids Jokes.
By Phyllis Agles-Johnson
Lulu Press (Lulu.com)
2010
Pg. 80:
Why did the balloon burst?
Because it saw a lolly pop!
 
Facebook
Stacey Grant’s Jokes
July 22, 2012 ·
Why did the balloon burst?
—Because it saw the lollypop.
 
Facebook
Balloonarama.
August 30, 2014 · Deal, United Kingdom ·
Why did the balloon burst ?
Because it saw the lolly pop !
 
Google Books
Oor Wullie:
The Big Bucket of Laughs Joke Book
By Oor Wullie
Edinburgh: Black & White Publishing Ltd
2015
Pg. ?:
Why did the balloon burst?
Oor Wullie: Because it saw the lolly pop!