“What do you call a cold puppy sitting on a rabbit?”/“A chili dog on a bun.”

A dog (hot dog) riddle is:
   
Q: What do you call a cold puppy sitting on a rabbit?
A: A chili dog on a bun.
 
The joke was posted on the newsgroup bit.listserv.down-syn on August 29, 1997.
   
         
Google Groups: bit.listserv.down-syn
Looking for kid jokes
BIG RED
8/29/97
(...)
What would you call a cold puppy sitting on a rabbit?  A chili dog on a bun
       
Google Books
Kids’ Silliest Riddles
By Jacqueline Horsfall
New York, NY: Sterling Publishing Company, Inc.
2003
Pg. 54:
What’s a cold puppy sitting on a rabbit?
A chili dog on a bun.
 
Google Groups: alt.humor.puns
Kid’s Puns of the Weak 03-09-04
Stan Kegel
3/9/04
(...)
What would you call a cold puppy sitting on a rabbit?
A chili dog on a bun. (Eric, 9)
 
Google Groups: alt.humor.puns
Kids Puns of the Weak 06-08-04
Stan Kegel
6/8/04
(...)
What would you call a cold puppy sitting on a rabbit?
A chili dog on a bun. (Michael Rogers)
   
Twitter
Betty Adams
@btboop2u
What would you call a cold puppy sitting on a rabbit?. . .A chili dog on a bun. #punday
7:15 PM - 5 Apr 2009
 
Twitter
Patrick Edison
@PatrickEh_
What do you call a cold dog sitting on a bunny? A chili dog on a bun 🐶🐰
1:05 AM - 7 May 2014
   
Twitter
Kurious
@kushmeyer
What do you call a cold dog sitting on a bunny?
A chili dog on a bun.
6:56 PM - 10 May 2014
   
Twitter
Queen Elsa
@Queenelsaice__
Q: What do you call a cold dog sitting on a bunny? A: A chili dog on a bun.
3:05 AM - 19 May 2014
       
Google Books
Happy Smile:
Jokes for Kids
By Adam Smith
Lulu Press (Lulu.com)
2017
Pg. ?:
Q: What do you call a cold dog sitting on a bunny?
A: A chili dog on a bun.
 
Reddit—RarePuppers
Ey Fren!, What U call a cold doggo sittin on a rabbit? A chili dog on a bun. (i.redd.it)
submitted February 19, 2018 by kandyS_Ayala
 
Reddit—Cleanjokes
What do you call a cold dog sitting on a bunny? (self.cleanjokes)
submitted May 10, 2018 by chacham2
A chili dog on a bun.