Taxi driver

Three men were drunk and they stopped a taxi.....the taxi driver
figured that they were not in their right minds......so, he just
switched on the engine and switched it off after a while and told them
: "we have arrived"......

The first man gave him money..... the second one thanked him.....
 but the third one....he slapped the taxi driver.....
The taxi driver was stunned because he was hoping that none of them
must have realized that the car didn't move an inch..
so, he asked the third man: "what was that for?"
The third man replied: "control your speed next time you got here so
quick you almost killed us....."