It's good to treat the disabled as equals.
Bill has a mentally disabled coworker named Brian, and they requently work together.
Bill wants to get his work done and go home.
Bill decides to show Brian how to do the task Bill is working on, and patiently coaches him through it.
Bill tells Brian to stay out of his way as Bill rushes through the tasks he needs to do.
Brian learns how to help Bill do his job and it is finished quickly and well, leaving Brian with a feeling of accomplishment.
The work is of substandard quality and Brian is left feeling underutilized and unappreciated.