Logic doesn't make sense

Second Madam Feng was a little sensitive at this moment. Hearing Gu Xin's question, she immediately asked, " "Princess, are you suspecting Butler li?"

Gu Xin shook her head and asked, " I remember that caretaker li was one of the people just now. Miss Feng san's injuries weren't just one or two times, but multiple times. You have a dog. You can use medicine on the dog once or twice to make it unconscious, but it's impossible to do it every time! So, either the thief is a member of the family, or the thief has colluded with the family to be able to enter smoothly."

"Then, Princess, get housekeeper li to come and question us," second Madam Feng immediately said.

there's no rush. Gu Xin nodded. let's wait for que 'er to finish.