Authors:

Rules and Things Number 63: Never, Ever Say Something Bad About Someone You Don't Know--Especially When You're Around a Bunch of Strangers. You Never Can Tell Who Might Be Kin to That Person or Who Might Be a Lip-Flapping, Big-Mouth Spy.

Christopher Paul Curtis, Holt Rinehart & Winston (2002). “Bud, not Buddy: with connections”, Houghton Mifflin Harcourt (HMH)
Rules and Things Number 63: Never, Ever Say Something Bad About Someone You Don't Know--Especially When You're Around a Bunch of Strangers. You Never Can Tell Who Might Be Kin to That Person or Who Might Be a