"Please Don't Spoil the Children"

Translation Courtesy of The Oxford American Dictionary, The American Heritage Dictionary, and the OED:

PLEASE DON’T
Ruin,
Damage,
Corrupt,
Frustrate,
Injure,
Mar,
Make Useless,
Harm the Character of,
Flaw Grievously,
Impair the Quality of,
or Render Unfit
THE CHILDREN