“What happened to the dog that ate nothing but garlic?”/“Its bark was much worse than its bite.”

A dog riddle is:
 
Q: What happened to the dog that ate nothing but garlic?
A: Its bark was much worse than its bite.
 
The garlic joke has been cited in print since at least 2003.
 
         
5 January 2003, Sudbury (ON) Star, “Howlingly funny jokes,” pg. B6:
Q: What happened to the dog that ate nothing but garlic?
A: His bark was much worse than it’s bite!
     
22 November 2005, Liverpool (UK) Echo, “Your Jokes,” pg. 20:
What happened to the dog that ate nothing but garlic
It’s bark was MUCH worse than its bite
 
Google Groups: nl.regio.wadden
Dogs
Aagje-Meu
2/14/07
(...)
What happened to the dog that ate nothing but garlic ?
His bark was much worse than it’s bite !
 
Twitter 
Bollywood Sargam
@bollywoodsargam
Dog jokes - 4124 Joke: What happened to the dog that ate nothing but garlic ?
His bark was much worse than it’s.. http://bit.ly/12QIYc
3:53 AM - 29 Aug 2009
     
Google Books
The Mammoth Book of Really Silly Jokes:
Humour for the whole family
Edited by Geoff Tibballs
London, UK: Constable & Robinson Ltd
2011
Pg. ?:
Did you hear about the dog that ate nothing but garlic?
His bark was much worse than his bite.
 
Google Books
The Dog Lover’s Digest:
Quotes, Facts, and Other Paw-sitively Adorable Words of Wisdom
By Vicky Barkes
New York, NY: Skyhorse Publishing, Inc.
2014
Pg. ?:
Did you hear about the dog that ate nothing but garlic?
His bark was much worse than his bite!
 
Twitter
lorraine Jo King
@LahLahBean
#Sidesplittingsunday What happened to the dog that ate nothing but garlic? It’s bark was much worse than it’s bite ! ☺
4:37 AM - 18 Mar 2018