While I was driving down the A64 the other day (going a little faster than I should have been), I passed under a bridge only to see a copper on the other side with a radar gun laying in wait. His mate, waiting in the layby further down the road, pulled me over, walked up to the car, and with that classic patronising smirk asked:  
  
'Runway too short?'  
  
To which I replied: 'I'm late for work.'  
  
To which he asked:  'What do you do?'  
  
I responded: 'I'm a rectum stretcher'   
  
The copper was surprised and confused: 'A rectum stretcher, and just what does a rectum stretcher do?'  
  
'Well,' I said, 'I  start by inserting one finger, then I work my way up to two fingers, then  three, then four, then with my whole hand in, work side to side until I  can get both hands in, and then I slowly but surely stretch the hole, until  it's about 6 feet.'  
  
Then the copper asked questioningly and  cautiously : 'And just what do you do with a six-foot arsehole?'  
  
To which I politely replied : 'You give him a radar gun and park him  behind a bridge.'  
  
Speeding ticket: £60.00  
Penalty Points  : 3  
Court costs: £45  
Look on copper's face:  Priceless..