"Has any female student come to look him up before?"
"No," the three students answered unanimously.
"During bedtime, have you guys ever woken up in the middle of the night to find that he was still awake?"
"Yes, there had been several times when I woke up in the middle of the night to use the washroom and guided myself with the torchlight on my mobile phone. I would often get a great shock when I come down from the upper deck and find that his eyes were still wide open. He doesn't get much quality sleep," one answered.
After pondering for a while, An Xiaoning asked again, "Does he have any habits that you guys can't tolerate?"
The three students looked at each other. Classmate B then said, "There's one bad habit of his that does get on our nerves. He often forgets to flush the toilet after he's done with his business. That's the only thing we can't stand about him after sharing the same dormitory for so long, because we are all clean freaks."