What well-known behaviors make you feel childish, annoying or unreasonable and contradictory?

I often see these news on TV or online after some holidays: tourist attractions are very congested, traffic jams on the road, and garbage is everywhere after tourists leave. I hate these behaviors, which seriously harm the interests of other civilized tourists. However, I seldom go out to travel and play during holidays. I just watch these phenomena on the Internet and listen to my friends. I don't have much personal experience. Let me talk about the uncivilized behavior of the masses around me that I hate!

1. On the day of the June 1st performance held in our school this semester, some parents of our school students stood very close to the stage during the performance, which blocked the sight of our junior students and prevented them from watching the performance. Several class teachers told parents to stand back, only a few parents withdrew a few, and most of them didn't matter at all. It was really hard at the time. Sadly, this is not your own home. This is a public place, and everyone is here to watch the performance. It's really speechless. Later, our headmaster couldn't stand it anymore, so he went on stage and put forward a "live performance request" with the parents of the students, about 5 minutes. Later, my parents' behavior was slightly better. It's nothing. Before the start of the cultural performance, the school leaders have expounded the discipline requirements on the spot, such as: don't litter. But after the performance, the venue was still a mess. Sometimes I wonder why some adults can't even compare with children. Some adults' homes are clean and tidy, but they often come to other people's "territory" too impudently and do some uncivilized things.

2. Some parents come to school to pick up students early after school in the afternoon, so they stand at the school gate and make trouble together. But once I heard them speak ill of our teacher. Some of their remarks are untrue and exaggerated. The president of our school's wife died of cancer, and people are already in a sad situation. Some parents said, "He will definitely find another one in a month." I think they are too boring. Whether others get married or not is none of your business. We don't object to chatting, but your chatting should be true, don't make it up, and can't be based on the suffering of others. If you think what you said is right, why can't you say it in front of others? Since everyone is talking about others behind their backs, I know in my heart that it is untenable.

These are some public behaviors that have happened around me recently, and I hate them very much. No matter where you are, you should pay attention to your quality. No one likes a low-quality person or an uncivilized tourist, so we should all start from small things and be civilized people.