Like a small rice cooker, the power is not big, indicating the use. For excusable things such as drinking hot water in cold weather, the guide will record it but will not report it to the school for notification.
In fact, it is best to be a teacher in this class or this college, and it will not be reported. General private lessons are enough.
As for the demerit, it is reasonable to say that it will affect students' awards, including the addition and subtraction of scholarships. It depends on whether your demerit is in the selection criteria and whether the tour guide is sure to register you during the selection process.