McLean v. The Queen, 2004 DTC 2585, 2004 TCC 200 (Informal Procedure) -- summary under Subsection 5(1)

The taxpayer ran his own hog operation on his farm but also worked as a barn manager at a nearby 6,400 hog-feeder farm. He was found to be an independent contractor given that the owner of the hog-feeder farm did not supervise the taxpayer's work, let him hire his own assistants (over its objections, in one instance), the taxpayer used his own tools and equipment and he shouldered a degree of financial risk in that he was paid a bonus equal to $1 for every hog shipped.