"If the respondent's contract on a site came to an end, and if there was no work to offer the applicant, he expected to be laid off without pay until a fresh offer of work might be made. If such an offer was made, the applicant was not bound to accept it and there was no general or unlimited right on the part of the respondent to move the applicant from site to site."
"The relationship was characterised by longevity and continuity. It was one of dependence."