Probably a Dispatcher's worst nightmare.
Citizen calls and reports an officer in trouble.
You know where he is, you know someone is close, but it still doesn't keep your heart from plummenting to your toes.
But thankfully, this is not one of those which ends badly, everyone will go home at the end of shift, and in one piece.
Thank you public for doing the right thing this time. If only there were more who would act instead of turning a blind eye.