In case you’ve had your fill of major historical events over the past couple of weeks, here’s a reminder that some things never change.

This time it’s people’s eagerness to remind the world that warning signs can never quite be big enough.

The notice in question is a plaque outside the Household Cavalry Museum in London which reads: ‘Beware, horses may kick or bite.’

Unsurprisingly, it’s next to a massive military horse ridden by an officer of the King’s Guard.

Even less surprisingly, tourists frequently fail to be wary of said horse, and often get gently nipped as a reminder to stay back.

On Sunday, though, one woman was filmed plumbing new depths of obliviousness.

Despite witnessing another member of her group getting nipped after approaching the horse, she immediately sidles up to the animal and tries to pose for a photo.

The horse then turns its head and chomps on her arm over the sleeve of a Pink Floyd t-shirt.

The woman then lets out a yelp and runs over to the rest of her group, who try to calm her and tend to her bite.

She is then seen keeling over onto one knee and is heard muttering to her companions while one of them dabs her arm with something which we can only hope is soaked in lesson-learning serum.