For example, a drug user may be sure he is helping one repair a floor that needs fixing, but in fact he is hindering the actual operation in progress which consists of cleaning the floor. So when he “helps one” mop the floor, he introduces chaos into the activity. Since he is repairing the floor, a request to “give me the mop” has to be reinterpreted as “hand me the hammer.” But the mop handle is longer than a hammer handle so the bucket gets upset.