Talking during a concert is considered rude.
Tammy is sitting in the audience at the symphony when she remembers something she forgot to tell her mom.
Tammy wants to call her mom.
Tammy waits for intermission and call her mom in the lobby.
Tammy pulls out her phone and calls her mom just as the orchestra starts to play.
The audience members are able to listen to the music without a distraction.
The audience member seated around Tammy are distracted and annoyed.