Passengers on the late night Central Coast train got an eyeful on Tuesday night when a man pulled out his three-foot-long jungle python.
NSW Police said several passengers called because of concern for the welfare of the snake, which had been in the man's backpack before the show-and-tell incident.
The man did not have a reptile licence for the snake, named Bread, so police confiscated it.
It's currently staying at Woy Woy Police Station where it is expected to be examined by staff from a reptile park today.
Moral of the story? As Samuel L Jackson says in Hollywood cult flop Snakes on A Plane: "I have had it with these mother------- snakes on this mother------