Mistress Gaia was not supposed to show emotion in her line of work and she was acutely aware of that. That is why she chose to crush some plastic bags because she knew there would be no one who would claim that they were injured. She also used that to get some exercise in before she called it a day. It was more fun than she had thought it would be.
Mistress Amber got Mozart balls from her boyfriend and there were so many of them and he knew she could not eat all of them. So she waited until he had left and she used them to have fun. She crushed them for fun and she enjoyed how they felt on her feet as she crushed them. When she was done, she invited a loser and she made him lick them off her feet.