WATCH: Straphanger Says His Dog Is A Bag To Get On Brooklyn Train

CARROLL GARDENS, BROOKLYN — What is a bag, anyway? That was the philosophical argument a Brooklyn straphanger posed to try and get a conductor to let him on a train with a large dog wrapped in a burlap sack.

A video circulating around Twitter shows a man trying to use a makeshift carrier — which really is just a piece of fabric with leg holes and a string to hang the "bag" from his shoulder — to hold his white fluffy dog onto the train at Carroll Street station.

But the conductor wasn't convinced.

"I'm not letting you on my train," the conductor says. "That's not a bag, it's a wrap."

"But I'm carrying it," the straphanger says, trying his best to persuade the conductor that his creative dog carrier is no different than bringing a purse or bag on the train.

The MTA's policies require all animals brought on subways to be "enclosed in a container and carried in a manner which would not annoy other passengers."

The two agreed to disagree as the train pulled away. "I'm sorry," the conductor said out of the train window, to which the man replies, "It's fine."

This is far from the first time New Yorkers have gotten creative to try and bring their larger pets onto the city's subways.

Riders have put their pups in everything from backpacks, to baby carriers, to an Ikea bag much like the man's burlap sack that had holes cut out for the dog's legs, a 2017 article in People shows.

Most, unlike the unlucky man caught by the conductor, actually made it onto the trains, too, Tweets show.

Some New Yorkers noted this when replying to the video on Twitter, saying the man should have known to stay back from the front of the train so he could make it on undetected.

"LET HIM RIDE!" Twitter user Bradley Brownell argued.

Others, though, were not as supportive.

"The only thing I'm focused on is that there's no way that dog feels comfortable," Twitter user Margaret says.

"The audacity is inspiring," another, named Josh De La Rosa, chimed in.