Oh Gilda, I know what you mean. Cattleyas too are really quick to attach themselves to the bench. We have this 3/8 inch grid mesh covering our benches. We have a bunch of catts in 4-inch square pots and I was in the gh yesterday moving some stuff around for better light and darn it if every-other-one of those catts had grown roots down through the mesh and attached the plants to the benches. Some much worse than others.
We have a huge specimen sized angraecum that is now permanently mounted itself to the top bench in the gh. It has been there for about eight years and there is no way to remove it now. If we ever move, I guess we would have to cut away the mesh from the bench to get the orchid out of there!