“Wildcat” strikes, like the one that teachers used effectively in West Virginia in February/March of this year, are when union members walk off the job despite the wishes of their leadership. By definition, they are something uncontrollable and spontaneous. While wildcat strikes have technically been illegal since 1935, the late 1960s and early 1970s saw a few of these on-the-job actions, notably the Memphis Sanitation Strike in 1968 (the folks Martin Luther King Jr. was speaking to when he was murdered) and one at U.S. auto company Chrysler, begun by the African American–led Dodge Revolutionary Union Movement, also in 1968.