A blonde was cruising along on her cb750 when it started acting up, and eventually stopped running altogether. She managed to get it to the shop and fretted over what could possibly be wrong.
After a couple minutes of tinkering, the mechanic had it roar to life and purring like a kitten.
"Omigoodness!" said the blonde, "what's the story?"
"Just crap in the carburetor," the mechanic replied.
she said"...how often do I have to do that?"
