It's wrong to spy on people in the bathroom.
Robert's sister has been in the shower for a while and Robert has been waiting.
Robert wants to know how long his sister will be.
Robert calls out to his sister and asks if she will be long.
Robert pops the door open a crack to see if his sister is almost finished with her shower.
Robert's sister yells that she won't be much longer in the shower.
Robert's parents send him to counseling because he is looking at his sister naked.