Politeness.

A devout Arab Muslim entered a black cab in London. He curtly

 

asked the cabbie to turn off the radio because as decreed by his

 

religious teaching, he must not listen to music because in the time

 

of the prophet there was no music, especially Western music

 

which is the music of the infidel. The cab driver politely switched

 

off the radio, stopped the cab and opened the door. The Arab

 

asked him, "What are you doing? "The cabbie answered,

 

"In the time of the prophet there were no taxis, so fuck off and wait

 

for a camel!"