Season 9: Episode 204: Favors
Debra complains to Raymond about leaving things around the house. Later on, when Raymond receives a personal letter from his idol, Muhammad Ali, he remembers what Debra told him, so he puts it away in a drawer. Unfortunately, when Debra later looks for a coupon in the same drawer, she's so put off by how much 'junk' is in there, she indiscriminately dumps most of its contents into the trash - and then dumps the trash into a garbage truck just as it arrives. When Debra realizes her mistake, she goes to Marie, desperate for help. Marie takes the blame, but Debra soon finds out that Marie, as always, has ulterior motives.