| By Madeline Jay | Nobody tells you much about starting university. They tell you to bring a mattress protector. They tell you about freshers' flu. They tell you – with a knowing smile, as though they are imparting ancient wisdom – that you should try everything. What they do not tell you is that one of the symptoms of a rare genetic neurological condition is a kind of reckless, euphoric inability to say no to anything; a loosening of every inhibition you've ever had; a grandiosity that...