I loved this episode.

I've worked in all sorts of places and always spent my breaks exploring my surroundings - sometimes within a building and sometimes further afield.

When I used to work for a UK government department I was staggered at how easy it was to access some supposedly restricted areas.

Many office buildings have a floor above the top of the liftshaft. It's not so much that you're not supposed to go there - just that nobody expects you to. That often provides unofficial access to adjacent companies in shared buildings.

Your tip to "look like you have a right to be there" is fundamental to the whole "hobby".