Mistress Lea wanted to crush these items and destroy them. That is what she did as she used her sneakers to do it. She was doing it as she did not have any use for them and she did not want to keep them. She did not know who to give them to either and so she chose to crush them for her own fun and it worked out the way she wanted.
Mistress Lea had a lot on her mind and she knew that if she did not keep herself busy, she would find herself worrying too much about things she could not control. So she found some toys in her house and without caring who they belonged to, she went out with them and she crushed them for fun. That kept her busy and she also had fun in the process.
Mistress Luna felt that her slave had outgrown his toys and she had to destroy them so that he learned to play with more accurate toys. In addition, the mistress wanted to test her new boots and she did so at the expense of the old toys. She crushed them and it turned out to be a fun thing and so she made it a regular thing to crush all over the house.
Mistress Luna was tired of crushing small fruits. She wanted to crush a big one today and see what difference there would be. So the mistress chose to crush a watermelon. It was fun although a bit challenging than what she was used to. The mistress had a great time with it and enjoyed how much fun she had because she did not think it would be that much fun.
Mistress Luna is a vengeful person. She does not care whether whoever pissed her off is a kid or an adult. She has to beg her revenge and she loves to do it in a way that gets felt. That is what she did to this kid who pissed her off. The mistress took the kid's toys and she used her sneakers to crush them. And she did it as the kid watched crying.