In Rick Morrissey’s new book, Ozzie’s School of Management, the most used word begins with F; second is a word that begins with “mother.”

The Chicago Sun-Times columnist, and my former colleague at the Chicago Tribune, chronicles the unique management style of Ozzie Guillen. The book focuses on Guillen’s tumultuous final season in Chicago and lays the foundation for his first year in Miami. It foreshadows the eventual controversy that erupted following Guillen’s comments about Fidel Castro.

It’s a fascinating read, and I’m going to have more on the book in a future interview with Morrissey. Last Sunday, the Sun-Times ran an excerpt. It details how John Kruk taught Guillen the art of swearing when both were young players in the San Diego farm system. At the time, Guillen, a native of Venezuela, knew little English. Thanks to Kruk, two words soon became prominent in his vocabulary.

Here are some of the excerpts of the excerpt.

Kruk would like to formally apologize. ‘‘I take 100 percent responsibility,’’ he said, chuckling. Few people in major-league baseball drop more F-bombs than Ozzie Guillen, and none do it with his dexterity. He might have learned the word during rookie ball in 1981, but he learned all of its combinations, tenses, applications and nuances from Kruk, who was his teammate for three years in the minors, starting in Reno, Nevada, in 1982.

‘‘He learned how to use it in a lot of different ways — a verb, an adverb, a noun, a pronoun,’’ Kruk said. ‘‘It was free-flowing. I apologize to people for that part of Ozzie’s life. I feel like it is my fault.’’

So, yes, we have discovered the person who taught Guillen the many uses of the word f—. It’s like finding out who first put a paintbrush  in Michelangelo’s hand.

‘‘He taught me all the wrong things,’’ Guillen said, smiling.

Later, Kruk said.

‘‘A lot of Latin players, when they come over here, they’re intimidated by the language and the culture,’’ he said. ‘‘Ozzie embraced it. He wanted to learn. He was eager to learn. He was asking questions — believe me — nonstop.

‘‘I have two young children now. The ‘Why, why, why’ and the ‘Why, Daddy?’ — that was Ozzie to me. ‘Why Krukie? Why this, Krukie? Why that, Krukie? What happened here, Krukie? Tell me this, Krukie.’ I was like, ‘Oh, God.’ It’s like what you do with your kids. You give them some candy, and maybe they’ll be happy for a little while. But I didn’t have any candy to give Ozzie.”