They were looking for a good place to drill a hole through the wall. “Are you trying to escape?” I asked. Apparently, they were planning to dig through the wall somewhere and install a fake wall in its place to create a hiding spot. “Can I join?” I asked, to which they accepted. Unfortunately for us, we were surrounded by 3 walls of concrete and a pane of glass facing a large garden. I told them that there wasn’t any chance that we were going to be inconspicuous.