One could say that our first performances were exactly as embarrassing to watch as only performance art can be. You know, when it comes to a point where the toes of the audience really start to hurt and everyone but the performers get soaking wet from sweating.- Michael Elmgreen and Ingar Dragset
Conclusion: no matter how bad the art, there is always hope. So before destroying and discouraging, relax. Think of the beautiful belly on this door, and of the time it took to grow. Respect that.
Pictures are of works by Elmgreen and Dragset: Belly Door (2006) and Powerless Structures, fig. 187 (2002)
Here is an interesting interview related to another work they made.