Explanation: Salting occurs when someone takes a job with a company that the union has targeted for employee unionization, and thus works to encourage employees at the new company to organize a union. This would be viewed as a form of instigation and is thus not a fair labor practice. Wildcatting, per se, does not exist, although there is a wildcat strike, which occurs in spite of a contractual prohibition against strikes. Featherbedding refers to the activity of keeping an employee in a position despite that position being considered obsolete due to changes in technology. And leafleting is a union activity that involves passing out leaflets about the union's position and thus drumming up support.