Three engineers got on a crowded lunchtime bus.
They somehow worked
their way to the middle of the bus where they found three
girls willing to exchange their seats for a
place on the guys' laps.
After they got settled and had ridden that way
for a while, the first
girl suddenly asked the gentleman under her whether
he might be an electrical engineer.
Surprised, he replied, "Yes, I am! How did you know?"
"Easy," she said. "I'm getting shocked by your soldering iron."
Just a few minutes later, the second girl asked her guy,
"Are you a mechanical engineer?"
He said, "Why, yes, ma'am. How did you know that?"
"Simple," she said, "Your piston is scraping my cylinder."
Shortly thereafter, the third girl turned to
her fellow and asked, "Are you a civil engineer?"
"I certainly am," he answered. "How could you have known that?"
"Well," she said, "I figured it out as soon as your
dam burst and flooded my village."