A nun is waiting at Heathrow for a flight to Aberdeen when she spots an 'I Tell Your Fortune' machine and decides to amuse herself. She drops a coin in the slot and the machine spits out a card which reads "You are a nun, you weigh 128 lbs and you are waiting for a flight to Aberdeen."
She thinks 'This is remarkable but probably a fluke. I'll try it again.' drops another coin in the slot and reads the card the machine spits out which reads, "You are a nun, you weigh 128 lbs and you are waiting for a flight to Aberdeen and you play the fiddle."
'Well that's ridiculous,' she thinks, 'I've never played a musical instrument in my life.'
Just then, another traveller carrying a violin case sits beside her and leaves it to go buy a coffee. Consumed with curiosity, she takes the violin from the case and tries to play it. To her amazement, she plays a beautiful rendition of Vivaldi's Four Seasons.
'That's amazing!' she thinks. 'I must try that machine again.'
The machine spits out another card which reads, "You are a nun, you weigh 128 lbs and you are waiting for a flight to Aberdeen, you play the fiddle and you are about to fart."
'That's nonsense,' she thinks but sure enough, as she steps down from the machine, she breaks wind. She decides to try one more time and inserts another coin.
The machine spits out another card which reads, "You are a nun, you weigh 128 lbs and due to your fiddling and farting about, you have missed your flight to Aberdeen."