It's rude to play music over people talking.
Charlie is playing a game on his phone while his parents are chatting on the couch.
Charlie wants to listen to some music.
Charlie grabs his earbuds, connects them to the phone, and plays music he can only hear.
Charlie walks over to the stereo and plays a rock song on full blast.
Charlie’s parents continue talking without being interrupted.
Charlie’s parents make him turn it off, and they lecture him on how disrespectful he was.