Opal Koboi was having mixed feeling. On one side she was happy because she had a bunch of test subjects to use on her many experiments but on the other hand Cave Johnson wasn't taking the medicine that kept him alive and mesmerized. She thought back to when she had first seen Cave Johnson. He had told her that he was the one who had bought the salt mine and was planning to make it into a science lab where he could invent and sell his products. Right then she knew she had to have aperture science. She remembered how easy it was to mesmerize a human and have him tell Cave Johnson that had a portal gun and an AI disc and that he would give them to him in exchange for testing rooms and test subjects. She remembered how she had made him sick and told him to take some medicine that her "father" had gotten for him. she remembered the reason she had sold him the portal gun and AI disc was so she could gain his trust so he would take the medicine. She remembered that she had to make him sick to mesmerize him because he had a strong mind. And now he wouldn't take the medicine. Opal finally decided that she was upset.