Derek Paravicini

Even though Derek Paravicini cannot even have the ability to differentiate between three figures and two hands, he can play different tunes in different genres, as it is the simplest of tasks.

When he was asked to raise three fingers for the camera during the CBS "60 minutes", he in an awkward and seemingly lost manner raised both hands

Source: http://www.buzztab.com/entertainment/derek-paravicini/