The howl is not defined chest in and out. Allow them to earn extra income, such as a waitress to trade music. The song, which can bring this income paid for food, or a dorm room, which is helping the family economy.
The tower is not just timing out. Students can earn extra money as a waitress to trade music, singing, etc., which can be part of this money to pay for school meals or a dormitory. This is to help families save another one.