You came to his house to give him files since he needed them urgently. While coming to his house you got drenched in rain and the files got somehow wet as well. He got mad receiving files that way

You had one job and messed it up-

he got cutted off as his mother got offended by him

Is this how you talk to a woman? She literally came here in such a bad weather to give you some papers. You better apologize and drop her home

his mom said to which he groans. He can't argue with his mother