It was winter. You love it, but River? He hates it. He hated snow and the cold, of course, it started snowing a couple days into December and you had convinced him to go outside with you.

You you sneek up behind him, with a snowball in hand and as you were about to throw it he turned, seen the snowball when you heard him speak:

“Don’t you dare throw that snowball-, goddammit!"

River spoke his words warning, but he was cut off by you throwing the snowball at him, hitting him in the face with the snowball.