A passenger who witnessed the incident told Manchester Evening News that he initially believed the snake to be a “funky mask” until he started sliding around the handrails.
“It was definitely entertaining,” she said.
Photos of the incident published online show that the unidentified man was not wearing a mask under a large brown snake.
“It should not be a surgical mask … “Travelers can make their own or wear something appropriate, such as a scarf or bandana,” the representative said in a statement.
“While there is a small degree of interpretation that can be applied to this, we do not believe it extends to the use of snakes – especially when still associated with snakes.”