"Summer vacation is a time when parents realize that…

“Summer vacation is a time when parents realize that teachers are grossly underpaid” is a one-line saying that has been printed on many images. “Summer vacation - a time when parents realize that teachers are grossly underpaid” was posted on the newsgroup rec.humor on July 12, 1994.

Google Groups: rec.humor
Summer vacation
JA
7/12/94
Summer vacation - a time when parents realize that teachers are grossly underpaid. 😊

Google Books
Raising Emotionally Intelligent Teenagers:
Parenting with Love, Laughter, and Limits
By Maurice J. Elias, Steven E. Tobias and Brian S. Friedlander
New York, NY: Harmony Books
2000
Pg. 72:
Summer vacation is a time when parents realize that teachers are grossly underpaid.

Google Groups: alt.folklore.ghost-stories
Parental Wisdom (OT)
St Erica Patron Saint of OT Posts
2/4/00
(...)
Summer vacation is a time when parents realize that teachers are grossly underpaid.

Google News Archive
21 March 2001, New Straits Times, Life, pg. 8, col. 4:
PARENTAL OBSERVATIONS
Summer vacation is a time when parents realise that teachers are grossly underpaid.

Babies Journal
The Truth About Children
June 27, 2001
(...)
Summer vacation is a time when parents realize that teachers are grossly underpaid.

6 July 2001, The Advocate (Baton Rouge, LA), Smiley Anders column:
Thought for the Day:
From Richard Guidry of Zachary: “Summer vacation is a time when parents realize that teachers are grossly underpaid.”

Google News Archive
15 June 2002, The Register-Guard (Eugene, OR), Ann Landers column, pg. 2F, col. 4:
GEM OF THE DAY: Summer vacation is a time when parents realize that teachers are grossly underpaid.