I'm sorry, but this is ridiculous. The student's behavior was completely justified, and the professor comes off as a self-important prick.
Whenever there are several courses competing for the same time slot, it's reasonable to visit all of them in the first 1-2 weeks of the semester, to understand which one you want to choose. Going just by the course description isn't sufficient, because the quality of the lecturer matters, and varies greatly. For example, you may want to know in advance that the professor is a self-important prick, and take that into account when deciding whether to take their course.
The professors and the students all know that, and late entry during weeks 1-2 of the semester is a normal, expected occurrence. Good manners dictate that the student who walks out in the middle or walks in late sit close to the entrance, to minimize the disruption to others. That's all, really.
Even beyond the first few weeks of the semester, walking in late to a lecture shouldn't be a big deal. The one who's hurt by this is the student who misses the material. The lecturer with a penchant to interrupt their lecture, deliver a brief sermon to the student and expel them are advised to grow the hell up and focus on their teaching.
The comparison with walking late into meetings doesn't have any legs to stand on. The professor is not harmed by the student's initial absence and can proceed with the lecture as planned. Each particular student's participation and feedback aren't essential to the lecture. And meetings that overlap or coincide can be rescheduled, unlike university courses.
Whenever there are several courses competing for the same time slot, it's reasonable to visit all of them in the first 1-2 weeks of the semester, to understand which one you want to choose. Going just by the course description isn't sufficient, because the quality of the lecturer matters, and varies greatly. For example, you may want to know in advance that the professor is a self-important prick, and take that into account when deciding whether to take their course.
The professors and the students all know that, and late entry during weeks 1-2 of the semester is a normal, expected occurrence. Good manners dictate that the student who walks out in the middle or walks in late sit close to the entrance, to minimize the disruption to others. That's all, really.
Even beyond the first few weeks of the semester, walking in late to a lecture shouldn't be a big deal. The one who's hurt by this is the student who misses the material. The lecturer with a penchant to interrupt their lecture, deliver a brief sermon to the student and expel them are advised to grow the hell up and focus on their teaching.
The comparison with walking late into meetings doesn't have any legs to stand on. The professor is not harmed by the student's initial absence and can proceed with the lecture as planned. Each particular student's participation and feedback aren't essential to the lecture. And meetings that overlap or coincide can be rescheduled, unlike university courses.