At least one single-serving cereal box snuck through. While ushers and security at TD Garden were instructed to confiscate all Honey Nut Cheerios-related paraphernalia — from boxes to signs — one container did pop up on the Jumbotron during Thursday night’s Celtics-Knicks game.

But one box of cereal doesn’t make for a hostile crowd, which was what the Knicks expected given the words exchanged between Kevin Garnett and Carmelo Anthony — including a widely reported off-color remark featuring the cereal and Anthony’s wife — during and after their game Jan. 7 at Madison Square Garden.