SOLVED. "obedient" children who are actually misbehaving--humor [s]

[Leanne]

Silly fictional book with individual stories of kids who appear to be good, but are actually sneaky: a boy who puts on his nice suit, but ruins it playing outside; a girl who does the dishes, but is dismissed after "accidentally" breaking plates.

It was about how to appear to be the perfect kid ....or something like that. I read it to my children in the 90's.

[Kris]

Tales for the Perfect Child by Florence Parry Heide seems to match your description.

"Vignettes of children whose less than desirable behavior is masked in insidious but acceptable ways."

[Leanne]

Yes! Oh thank you! You are my hero.

[Kris]

You're welcome! Glad you found your book.