Consider the following story, which may or may not be autobiographical: A college student named A is getting more and more frustrated with her roommate, named L. Every time A unloads the dishwasher, cleans the bathroom sink, or tidies up the coffee table, she thinks, "I can't believe how messy L is. She doesn't do anything around this place." Little by little, her resentment grows.
But one day, out of the blue, L approaches A for a house meeting. L is distressed over the fact that she, L, is the only one who does housework. She has been sweeping the kitchen and cleaning the shower. The entire time A had been fuming over the fact she was doing more than her fair share, L was fuming over the exact same thing. Both college students were falling prey to the phenomenon of overclaiming: the tendency for people to believe they're doing more than their fair share of the work.