“Honesty is the best policy, but insanity is the best defense”

‘Honesty is the best policy” is an old proverb. “Honesty is the best policy, but insanity is the best defense” is a jocular saying that has been printed on many images.
     
“Honesty may be the best policy, but insanity is the best defense” was cited in print in February 1996 and “Honesty is the best policy, but insanity is the best defense”—without “may”—was cited in July 1996.
   
   
Google Groups: alt.med.fibromyalgia
Sleepless nights as a child
pookiekat
2/18/96
(...)
Honesty may be the best policy, but insanity is the best defense.
 
Google Groups: alt.med.fibromyalgia
HUM Re: Humor break: The meaning of life
pookiekat
2/23/96
(...)
Honesty may be the best policy, but insanity is the best defense.
 
Google Groups: rec.games.trading-cards.misc
[Mythos] Picky rules questions
Matthew D Hirsch
7/1/96
(...)
Honesty is the best policy, but insanity is the best defense.
   
Google Groups: alt.support.anxiety-panic
New Attitude OT
Rita
7/14/01
(...)
Rita 😉  ~~“Honesty is the best policy, but insanity is the best defense.”~~
 
Twitter
tribas
‏@xtribas
Honesty is the best policy but insanity is the best defense.
8:12 AM - 12 May 2008
 
LiveJournal: dementeddamsel
Honesty is the best policy but insanity is the best defense. (i.e. the best quotes I found today.)
Apr. 17th, 2011 at 7:42 PM
Honesty is the best policy but insanity is the best defense.
 
Facebook
Smart Ass Quotes
December 10, 2012 ·
Honesty is the best policy but insanity is the best defense.
 
Thought Catalog
MARCH 4, 2016
50 Brilliant Sarcastic Jokes That Will Crack You Up When You’re Feeling Snarky
Mélanie Berliet
(...)
47. Honesty may be the best policy, but insanity is the best defense.
 
Twitter
Stick Or Truth
‏@StickOrTruth
Honesty is the best policy but insanity is the best defense. #jokes
1:45 AM - 25 Jun 2016