Just not the thing to do

Vicky was at the piano in the smaller drawing-room, playing old English folks songs, as girls will when their love life has gone awry. Gally's face was stern and his eye austere as he approached her. He was not pleased with her behaviour. Life, he considered, was difficult enough without girls giving excellent young men the pink slip and going off and playing old English folk songs.

(from Sunset at Blandings, by Sir Pelham Wodehouse)