Unecceptable behavior

Since I'm an exchange student in a foreign country, I'm very careful with what I do at all times. I'm scared about doing something wrong, something that can make me get in trouble. Lately though, after 8 months in the US I've started to loosen up a bit more. I've gotten to understand that even if there is guards and police at school at most times, there is nothing wrong with being a normal teenager.

Even so, I know that there are rules, and I did not come here to break them. Everyday I see someone in the hallways at schools doing something they technically should not have done. Running in the hallways, screaming to each other or walking with they're pencils in they're hands (sharp edges, which can be dangerous). BUT, yesterday the most unacceptable and most disrespectable happened. It all started in my chemistry class. All of the boys were sitting in a group and talking, making a lot of noise. And as if that was not bad enough, when our teacher asked us to sit down, it actually to 15 seconds for them to sit down in their assigned seats and keep quiet. 15 seconds!?!?! Hello? Didn't you hear her ask you guys to sit down and keep quiet NOW? Anyways, the worst didn't happen until about 5 minutes later: one of the guys, John, got called up to talk with the teacher and while he was walking one of his shoelaces loosened up, and he almost fell. The room was completely quiet, and no one said a word. In my mind all I was thinking was "just keep on walking and pretend that nothing happened and maybe she wouldn't see it”. But no, it was too late. He already started to  bend down to tie his laces. How could he? It was so disrespectful! Who on earth would tie they're shoe laces in front of the teacher. It was a horrible sight. After he was done tying his laces, he looked around in the classroom, with a worried look, wondering why everyone was so quiet. Some students just looked at him and shaked their heads. He turned around, looking at the teacher, who btw had the most angry looking expression in the history (personally I think it should have been in the Guinness Worlds Records). Then a light came shining down, and he understood what he had done. The only thing I could think was "why didn't you just go out in the hallway to tie you're laces", and "he should be punished!", as well as: " I'm so glad that was not me, then I probably would have been sent home based on my "unacceptable behavior".

In the end it ended with him being suspended for three days from school. All I can say is that he is lucky it was not more!