Mary, today we are going to treat your hyperthyroidism by using radioactive iodine
During Mary's treatment the doctor had used too much radioactive iodine! This resulted in Mary having 10 fingers on each hand, each having a power.
We are extremely sorry to say this but, during your procedure there was too much radioactive iodine in your system which caused 5 fingers to grow on each hand. These fingers have the power to teleport items.
When Mary got home she realized that her power was not as bad as she had thought
One day Mary's power came to use, she levitate a thief at the diner !