This is in my dorm, not my home. There are two showers on my floor of the dorm, one in each bathroom. If anybody on the floor flushes the toilet, the person in the shower gets burned by very hot water. I don't feel any shame if I flush the toilet and someone in the other shower gets burned because I would have no way of knowing if they were in the shower. But what if there's a person showering in my bathroom? If I flush that toilet, they are going to be burnt -- I will knowingly and willingly burn them. It's considered proper etiquette to flush the toilet after each use though. What should I do? Is their pain simply a sacrifice to be made to preserve a tradition that society values, or should I refrain from flushing and let them shower in comfort?