Was in Row 1 a couple of weeks ago (CE) and someone was playing a videogame at quite high volume. I asked the CSM to ask them to please turn it down. She reappeared a few moments later saying "it is a child: hopefully they will turn it off when we take off". I was a bit surprised she didn't 'request' they turn it off then and there, although I didn't notice it after the engines turned on so not sure if they stopped or were just too far back.

(OT, but I felt sorry for her later when she was one meal short and realised 3D was an impostor who "thought it was un-allocated seating". Couldn't quite believe that!)