Today, a SkyTrak machine was used to knock out the windows of a classroom. Notice the small bin located on the end of the machine. The operator would insert it into the classroom through the window area. Workers would then fill the bin with items from the classroom. The operator would then take the load to the dumpster at the end of the building and start again. The bin would be full of everything from insulation to ceiling framing to pieces of our beloved closets.
After watching this little bit of demolition, I understand why it's fun to build something just to knock it down. The operator of the SkyTrak said that he has lots of fun tearing stuff down.