My intriguing random plot elements:

A brilliant 33 year-old man 
A stubborn 75 year-old woman 
An aeroplane 
Someone telling the truth isn’t believed 
secrecy

My story:

The old lady sitting next to him was having none of it. The problem with being genius so to speak was that people very rarely understood where you were coming from. In this instance though he was relieved by the woman’s scepticism; he really should not be sharing this information. There was just something about aeroplanes, as soon as he was up in the air he felt like pouring his heart out to whomever it was unlucky enough to sit next to him. Perhaps it was the free booze he hazily thought as began to divulge yet more confidential information. 

Hooray. Thank to http://writingexercises.co.uk/plotgenerator.php