Five surgeons were sitting together during a break, talking about which types of patients were the easiest to operate on.

The first surgeon said, “Personally, I like operating on accountants.”

The others looked at him curiously.

“Why accountants?” one asked.

“Because when you open them up,” he replied, “everything inside is numbered.”

The second surgeon shook his head. “No, no. Librarians are much better.”

“Librarians?” asked the third.

“Absolutely,” said the second surgeon. “Everything inside them is in perfect alphabetical order.”

The third surgeon laughed. “You’re both wrong. Electricians are the best patients.”

The others turned to him.

“Why electricians?”

“Because everything inside them is color-coded,” he explained.

The fourth surgeon leaned back and said, “I prefer lawyers.”

Everyone went quiet.

“Lawyers?” someone asked.

“Yes,” he said. “They’re heartless, spineless, gutless, and their heads and butts are interchangeable.”

The group laughed.

Then the fifth surgeon, who had been quietly listening the whole time, finally spoke.

“I like engineers best,” he said.

The others looked at him. “Engineers? Why?”

He smiled and replied:

“They always understand when you have a few parts left over at the end.”