Excerpt from Michael Caine’s awesome book Michael Caine – Acting in Film: An Actor’s Take on Movie Making 
Always tell everyone your first name when you’re at the studio or location, because if you insist on being called Mister, Miss, or Ms., you might find hammers and lamps falling off the catwalk perilously close to your head. The sooner you establish a friendly relationship with the techinical people, the sooner they’ll go out of their way to help you.
