Umbridge scanned the Gryffindor table in an attempt to find Harry, but she never found him. Then she proceeded to eat her food without a care. It was a few minutes later when the toad felt her insides acting up.
“Ooooh!” Umbridge groaned, grasping her stomach.
When her insides began acting up more violently, she got up and started waddling her way out of the Great Hall, intending to make a beeline for the girls’ lavatory. She was halfway between the staff table and the double doors (between Gryffindor’s and Ravenclaw’s respective tables) when she felt the back of her cardigan skirt and knickers getting soaked with her own waste. This also resulted in a large brown spot forming on the back of her skirt, much to the amusement of the student body, while the teachers were confused. Umbridge also turned around and saw that her skirt was dripping her own waste on the stone floor, much to her humiliation.
“HOW COULD THIS HAVE HAPPENED?” screamed Umbridge.
“Who knows, Dolores,” said Professor Dumbledore. “It’s possible that somebody spiked your food or your goblet of pumpkin juice.”
Umbridge felt her irritated bowels act up again. She tried holding in until she made it to the loo, but those muscles relaxed and made Umbridge poop herself again. She screamed in anger before finally leaving the Great Hall, but the sound of the students’ laughter continued ringing in her ears. Umbridge spent a little over an hour and a half on the loo before she could leave, then she cast a non-verbal charm to clean her cardigan skirt and knickers.