but sponges do not know what is responsible and useful. Sponge had to find anyone in the kitchen for functions and benefits of itself. However, sponges do something that others do not. I feel hurt and sad that they are useless. One day, everyone in the kitchen started to smell dirty black sponge that is sad and hurt, then quit to take care of everyone in the kitchen sponge was removed by water injection to everyone in the kitchen.