A man wearing a Scream mask who stole petrol in Darwin pulled a gun and threatened a man who was attempting to take down his number plate.

A Darwin bishop says the first time anyone's offered to wash his feet at Easter wasn't at a church, but by a teen inmate at Don Dale Youth Detention Centre.

An ex-NT top cop has faced court charged with perverting the course of justice over the case of a disgraced travel agent he allegedly had a relationship with.