You must walk in the halls, not run, you can get seriously hurt. You can trip and scar up your knees, you can tumble and fall, and hit your behind. hope this helps :)
Running in a crowded hallway is dangerous for the person running and those around them. Someone can trip and be seriously injured. No running in the hallway is a rule which all students are expected to follow and respect for their own safety and the well-being of others as well
Mawi's father was afraid that the Ethiopian army was going to make him a nurse for the army. He could not take his family because it would too much time and he wanted to keep them safe.