Over the course of my life, I’ve seen art that has upset, revolted, and disturbed me, but the closest I have ever come to getting into a fight over artwork was at this year’s Venice Biennale. For those who are unfamiliar with it, the Biennale dates back to 1895 and is the world’s oldest — and arguably most high-profile — art event in the world, running every other year, alternating with an architectural Biennale.