I haven't heard of any cases.
These temporary workers who have been tapped by cattle feeders represent a significant investment. Cattle feeders are not interested in temporary workers. They've resorted to the temporary worker program as a matter of last resort. What I've heard are other stories. For example, there's Paskal Cattle Company near Lethbridge where a Mexican temporary worker was brought into the country, did very well, and received permanent residency. His family came and now this individual is actually the manager of that feedlot operation.