"I don't work here. I'm a consultant"

“I don’t work here. I’m a consultant” is a jocular saying that has been printed on many gift items, such as T-shirts, hats and coffee mugs. The saying has been cited in print since at least 1999 and is of unknown authorship.

Google Groups: alt.support.arthritis
more humor?
CBVCM
(...)
*I don’t work here. I’m a consultant.

Aaaugh! a humor archive
Newsgroups: rec.humor.funny
Subject: Smart Comments
Reply-Path: .(JavaScript must be enabled to view this email address)
From: .(JavaScript must be enabled to view this email address) (MacEddie)
Keywords: chuckle, swearing, forwarded
Approved: .(JavaScript must be enabled to view this email address)
Followup-To: rec.humor.d
Message-ID:

Date: Thu, 3 Jun 1999 19:30:00 PDT
Path: news.en.com!news.oanet.com!cyclone.news.idirect.com!island.
idirect.com!newsfeed.direct.ca!news.netfunny.com!funny-request
Xref: news.en.com rec.humor.funny:508

Smart Comments

Try using these some time…....
(...)
19. I don’t work here. I’m a consultant.

Google Groups: us.military.army
shamelessly stolen from ABPM, reposted from the 404 @ AFM
redc1c4
4/1/00
(...)
94. I don’t work here. I’m only a consultant.

Google Books
Pastor Tim’s Cleanlaugh Collection
Featuring the Internet’s Funnies Clean Humor
By Tim Davis
Victoria, BC: Trafford Publishing
2001
Pg. 150:
I don’t work here. I’m a consultant.

Google Books
Aren’t You Sorry You Asked: . . . for My Opinion
By Albert L. Maslar, Jr.
Bloomington, IN: AuthorHouse
2006
Pg. 308:
I don’t work here. I’m a consultant.

Google Books
The Biggest Joke Book Ever
By Jack Jacoby
Victoria, BC: Trafford Publishing
2012
Pg. 385:
I don’t work here. I’m a consultant.

Twitter
Rishen #24
‏@RishenErriah
25 phrases you wish you could say at work more often! My favourite is, “I’m a consultant, I don’t work here!”
5:54 AM - 1 Oct 2013

Google Books
The Snark Bible:
A Reference Guide to Verbal Sparring, Comebacks, Irony, Insults, and So Much More
Edited by Lawrence Dorfman
New York, NY: Skyhorse Publishing
2014
Pg. ?:
I don’t work here. I’m a consultant.