Is it normal that my sister drilled a hole on her 12 year old kid's room?
My older sister has a 12 year old daughter. The kid's really sweet, nice, and polite, yet my sister acts like she has a huge secret. She very recently drilled a peep hole in the wall separating her bedroom and the kid's room. My sister also refuses to hear from the kid. Our mom told me that I should do something about it because my sister won't listen to anything she says. What should I do?