Sound familiar?
   
     
A blonde drives into auto repair shop."That's a lovely car," said 
the mechanic. "What seems to be the matter?" "Well, it just conked 
out I'm afraid." "Let me have look." He set to work and ten minutes 
later the engine was purring like a cat again.
     
"Thank goodness," she said.  "What was the matter?"
     
"Simple really, just crap in the carburetor," he replied.
     
Looking shocked she asked, "Oh, okay. How many times a week do 
I have to do that?"