Suffer BITCH!

A person with long hair, wearing a dark jacket and pants, stumbles and falls down a narrow indoor staircase, using their hands to brace against the wall and rail, while another person with long hair, wearing a dark jacket with a fur-lined hood, sits on the lower steps, looking down at a phone. The fall begins with the person losing balance on the upper steps, then flailing their arms and legs as they slide and tumble down the stairs, eventually landing on the lower steps, while the person sitting remains seated and focused on their phone throughout the fall.