Fat Finger disease is characterized by those having short, stubby fingers and rounded finger tips. Symptoms include false dyslexia while typing, as these fingers cause abnormal key sequencing. The only known benefit of Fat Fingers is the patient is more able to pleasure his partner, assuming the patient is male.
Otherwise, the patient is just a freak of nature.
... just type a bit. If you have to hit backspace more than 2 times in one sentence for misspelling or backwards key stroking, you suffer from Fat Fingers.