A piece of Tarmac goes into a pub , orders a drink and announces that he is 
the hardest piece of tarmac in the land.  
  
Just then a piece of Dual carriageway walks in , orders a drink and announces that he is the hardest piece of Dual carriageway in the land.  
  
Then a piece of Motorway walks in, orders a drink and announces that he is the hardest piece of Motorway in the land.  
  
Then a piece of coloured Tarmac walks in and all the other supposedly hard pieces of Tarmac turn to avoid eye contact.  
  
Upon this the barman asks the Tarmacs what is wrong , they reply in unison......"we're not drinking with him"............................he's  a cyclepath.