2. "his job was to bring that truth to light. It wouldn’t be easy. The place was under heavy guard, with professionals involved. Yakuza? Perhaps. Businessmen, those involved in real estate in particular, are often involved in secret negotiations with yakuza. When the going gets rough, the yakuza get called in. It was possible the old dowager might be making use of their influence. But Ushikawa wasn’t very certain of this—the old dowager was too well bred to deal with people like them. Also, it was hard to imagine that she would use yakuza to protect women who were victims of domestic violence. Probably she had her own security apparatus in place, one that she paid for herself. Her own personal system she had refined. It would cost her, but then, she wasn’t hurting for funds. And this system of hers might employ violence when there was a perceived need. If Ushikawa’s hypothesis was correct, then Aomame must have gone into hiding somewhere far away, with the aid of the old dowager. They"
- Haruki Murakami, 1Q84
3. "I had been watching the yakuza for over a month now, and knew his routines. I’d learned that he liked to vary the times of his workouts, sometimes arriving at the gym early in the morning, sometimes at night. Probably he assumed the resulting unpredictability would make him hard to get to. He was half right. Unpredictability is the key to being a hard target, but the concept applies to both time and place. Half measures like this guy’s will protect you from some of the people some of the time, but they won’t save you for long from someone like me."
- Barry Eisler, A Lonely Resurrection