Work advice: I witnessed horrible behavior from my colleague. I told my bosses the truth, and he's treated me horribly ever since.

Good Job is Slate’s advice column on work. Have a workplace problem big or small? Send it to Laura Helmuth and Doree Shafrir here . (It’s anonymous!)

Dear Good Job,

I am a female 46-year-old working with a man, “Brandon,” who is the same age. We work in the counseling field, in residential care for teenage clients.

About 18 months ago, I witnessed “Brandon” being verbally abusive to a kid. When I was asked about it, I told my bosses the truth about what I saw and heard: Brandon was threatening and insulting a kid with cognitive disabilities.

Well, Brandon found out, got angry at m, and hasn’t spoken to me cordially since. At first he stopped speaking to me completely and labeled me a snitch. So now I get the silent treatment or, if he has no choice but to ask me something (may