" The body may play host to multiple personalities, but Dr Laine explained, if that body was to function normally in the wider world then there had to be one personality in control, what she called the 'dominant personality'.
'So I'm the dominant personality?' I assumed, completely unprepared for the answer.
'I'm afraid not,' she said, adding it was her role to encourage me to reach my potential.
As if discovering you share your body with 100+ other personalities isn't embarrassing enough for your ego, it's nothing compared to the blow when you realise you're not even the main one! "

― , All of Me