Two quotes for you to use.I'm afraid that the next time one of them approaches me with a barely skinned knee or a story about who cut in line, I'm going to get in their face and tell them I don't give even the tiniest shit. And your parents are ruining you by making every inconvenience in your life an ordeal. And if you read a book for every time you tattled, you'd have gone through our school's library 3 times over.
*deep breath*
"No blood, no tears."
"Snitches get stitches."
I'm sure the principal will agree with using those in the workplace.