Background: Dr Kelso was having a hectic schedule in the hospital. He entrusted Janitor with a task of fetching cash from a pickle jar at home. When Janitor returned in a new leather jacket, Kelso suspected he bought it with money he stole from him. His suspicion grew stronger when he went home and saw his estranged wheelchair-bound wife in a plush pant suit. In this scene, he went back to confront Janitor, threatening to call the police on him if he didn't give the money back. Hi, I know "invalid" means "disabled", but I wonder if "invalid" strikes you as a minority usage that you'd rather use "disabled" instead.