In 1931, Brooker had a painting removed from a Toronto gallery because it contained a nude figure. In response, he wrote Nudes & Prudes, an essay criticizing the puritanical attitudes that plagued the Canadian art scene:
"There lives in Toronto an artist, a native of France and a frequenter of Paris, who has not been long in Canada. I first met him in a downtown store whither he had come looking for a picture of a horse. After we had been introduced by the keeper of the store, he mentioned his quest. In musical broken English he said:
'I want a picture of a 'orse.'
When asked what kind of a horse and for what purpose, he very pleasantly explained:
'Tonight I give lecture to Art Students' League, and I want to show that animal is beautiful because every part made for function, without ornament. In Paris I would show woman, but in Toronto I show a 'orse.'”