As a consultant you can get into some interesting situations.  I have been on projects before where I am the only person, but that has always been for small companies.  My current project is for a large company doing work for one of their career development/process improvement groups.  Yesterday I had to make a presentation to the entire group.  I have to say that it felt like walking into the secret chambers of the Free Masons.  Here I am seeing part of the company that no other outsider does.  Of course in the end it is just another project, but it is a strange feeling all the same.