the empty pineapple juice containers

When Selina was by her tree at night, waiting for Opah, she started whistling, yet she looked uncomfortable. There was a close up of the juice containers from earlier..Then she called to see if "anyone was around"---something didn't quite make sense in this scene, and then it hit me(this may seem indelicate). Poor Selina had to urinate and needed her privacy---she disappeared behind the tree. This scene was somehow very touching to me--she had to put up with so much, and here was a minor but still important inconvenience in her life. The next day Gordon whispered in her ear, after she declined the juice, about the ladies room in the park.