>Disclosure: underground tunneling is my profession. That is the best thing I've read all week :) That's an awesome job! How common is that? Do you get hired f

>Disclosure: underground tunneling is my profession. That is the best thing I've read all week :) That's an awesome job! How common is that? Do you get hired for individual contracts, or are there entire companies that tunnelling is what they do 24/7?