In front of the whole class, can the teacher joke that he compares his classmates to dogs?

Hello, classmate. I don't think it's right for the teacher to do so. As a teacher, you should be a model. You shouldn't humiliate a student who hasn't made a mistake in front of everyone. Even if students do something ridiculous, teachers should pay attention to their own language, which may protect her students' self-esteem. If the teacher has the habit of joking, as a student, don't take his words too seriously. This is the teacher's personal accomplishment, not the students' fault. I hope my answer will get your approval. thank you