The model and “toxic” people

I’m a coach and I was answering a question for a friend about if someone could be “toxic.”
My response was that people are a Circumstance and only our Thoughts about them can make them toxic and that toxic is a judgment.

So the model would be:

C = person says words
T = the person is toxic
F =
A = energy drained, ruminating about persons circumstances

That’s the model I explained. Am I correct?

Am I using the model accurately?