Haldir yelling at the two boys did nothing. Terin only had one thing in mind, to make Sellion stay in the room to take some of the heat with them, and Sellion only had one thought; get out. It wasn't until they heard their mother start laughing that they stopped mid-scuffle and stared up at her in wide eyed shame.
"Mom!" Sellion said, scrambling to his feet, brushing off the dirt he and Terin had stirred up in their fight. "I tried to stop them, I really did..." he started, backing away from Terin and Haldir.
Terin, still on the floor, just shook his head and glared over at his older brother. "Stop lying, Sellion," he spat, turning to look up at their mother. "Arya didn't want to wait for pie," he said, as if that explained everything. In his mind, it really did. When that little girl wanted something, she usually got it. No one could resist her cute faces.