The instructor ate the students' leftovers in front of the students, of course, its intention is good, but this "teaching by example" should not be promoted, the boys can not eat off, because of the time to play more than one meal, in the face of such a situation, the teacher or resident instructor the correct way to open, is to strengthen the students in the usual food education, so that students understand that "A porridge and a meal, when thinking of the place is not easy; half silk and half a wisp, always think of the material force is difficult" reasoning, to eliminate waste of food and drink, to develop a good habit of cherishing food, in the cafeteria to play the meal to eat how much to play how much, instead of waiting until the students eat the rest of the preparation to go to the dump and then come "to show that! ".
The second is the lack of educational effect.
The instructor ate the student leftovers in person, may not be able to receive the expected educational effect. Reasonably speaking, students playing meals beyond the scope of their ability to withstand, dead eat dead, particles do not remain, seemingly no waste of a grain of food, but eating too much will certainly harm the body, the instructor ate students leftovers in person, is to imply that students would rather hard to hold on to can not be left over, this demonstration of the transmission of a wrong values, and our folk circulated "children left the bottom of the bowl, grow up to marry hemp wife". This kind of demonstration conveys a kind of wrong values, which is no different from the idea contained in the popular saying "children leave the bottom of the bowl, grow up and marry a hemp wife" and "eat nothing, sores are born". In fact, not to eat off the pouring although it will cause food waste, but more beneficial to health than hard to eat.
Third, there are many risks.
Eating student leftovers, not in line with hygienic habits, after all, student leftovers with student saliva, eating may cause bacterial infections, modern medical research has found that many gastrointestinal diseases will be transmitted through the oral route, many of which are "eaten out". Especially in the context of the current epidemic prevention and control of normalization, catering enterprises have been widely implemented public spoons and chopsticks, eliminating "a pair of chopsticks to eat the world's" bad habits, in order to interrupt the risk of foodborne transmission, the instructor took over the chopsticks in front of the students to eat students' leftovers, undoubtedly giving themselves a lot of increased risk of viral infections, and also does not comply with the requirements of the epidemic prevention and control.