A hilarious invisible door prank video has gone viral in India.
The store owner is shown miming polishing a door, which an inattentive customer on his phone mistakes for a very clear glass door, causing him to trip and stumble trying to open it.
The customer soon realises he was pranked by the shopkeeper, and they all burst into laughter after having fooled the man.
The prank ironically took place at a store selling glasses.