As Theresa May makes one final plea to Parliament to back her Brexit deal, a portion of the population are dressing their pets in costumes.

National Dress Up Your Pet Day is an opportunity to push convention to one side and squeeze your adorable animal companion into clothes.

While millions of years of evolution provided animals with the requisite internal thermometers, digestive systems and sharp appendeges to look after themselves, it could not come up with a small bee costume or a way to make a dog temporarily look like a penguin.

National Day Calendar has prepared a list of tips for the big day.

If your pet just doesn’t like dressing up, let them sit this holiday out.

Be sure it fits. Restricting movement or ability to breathe can cause injury or illness.

Many pets like to chew. Avoid loose or dangling pieces which can cause choking hazards.

The day has a surprisingly long history, dating back to 2009 when celebrity pet lifestyle expert and animal behaviourist, Colleen Paige.

What do you think? Is dressing up your pet a bit of fun, or fundamentally indecent? Let us know in the comments below.