OMG, what twats.
I've seen artists preparing their shows. It is delicate, detailed work and the reason you don't touch the artworks is because it will damage them. Surely everyone knows you don't climb on a sculpture unless it is one that's designed for it. Anti-establishment my arse. It is someone's work and property. You might as well say your kid is being anti-establishment if they stand on someone's toe or push over their coffee.
At one exhibition DP was involved in, there was a large cast-iron sculpture and daft parents let their 2yo climb on it at the launch despite being told not to. After 2yo had "expressed himself" with the sculpture, he wanted to play, so his mum lay down on her back with her legs waving in the air letting him climb on her. At a posh private view with everyone milling around with drinks.
Exasperated gallery assistant went up and said "you do know this event is being filmed" and pointed a video camera at her :o