An unforgetable day

Today is our graduation ceremony . All the graduates came to the auditorium early . At 8 a.m.our principle arrived , he looked groggy , maybe he still worked late last night . He just launched a short speech , then left quickly .
When the ceremony was over , all our classmates went to a bar to keep celebating , we were lively and full of bonhomie .
But in another room beside our's , we heard someone shouted and cried . One of our classmates , Dave , went out and saw a young man coerced a boy into drinking wine .
"I'm so angry ", shouted the young man with rage .
"What happened ?" asked Dave.
"It's none of your business ." shouted the young man .
"You can't treat the boy that way , he is just a child ."
"Just a child ? you know what he did ! He trespassed our business ! all the wine in this bar was provided by me ！" , then he turned to the boy , " you know who my father is ? who am I ? My father is president Trump ! you bastard ! you destroyed the rules ! " said the young misanthropic man .
No matter what he did , no matter who you are , you shouldn't so prudent to fight him . Please let him go , and I will pay your loss . " said Dave .
all our classmates persuaded the young man , finally , he agreed to let the boy go .
The boy thanked us and gave us a pury smile , then ran away quickly . I remembered the simle , it's a symbol of purity .
It was late when we got home , after a day's activity , we were absolutely spent
, it's our last day as a student ,but also a meaningful and unforgettable day for us .