Not to speak of the "French flatulist" Joseph Pujol who made his living farting on stage. See https://en.wikipedia.org/wiki/Le_P%C3%A9tomane

I have a book on him called "Le Petomane. Or gone with the wind" published in 1967 for 5 shillings. 

From the blurb: "Sarah Berhardt drew box-office receipts of 8,000 Francs but LE PETOMANE in a single Sunday took 20,000 Francs at the box-office".