Flying Lego Pieces, Smashing windows, and load War Cries. Can you guess your child's excuse for this? I bet that they've said that Batman and Robin was fighting Two-Face and the Riddler. No wonder, they were playing Lego Batman with the Volume on Maximum. Tell them that they'll wreck their ears if they'd keep the volume that load, turn it down, and see this review of Lego Batman for PlayStation 2:
http://ps2-reviews.blogspot.com/