Another of their damnable promotions, presumably! It was the regular Gottschalk technique: select an area where sales were below average, saturate it with rumors until someone’s temper reached the breaking point and the inevitable division occurred into blank and kneeblank, and then the following day take advantage of people’s frayed nerves to sell guns, grenades and mines.
Source, in full
Chapter 49, “If You’re Afraid of the Dark You Can Always Carry a Flashlight But There’s No Cheap Portable Protection Against Loneliness” (p. 152; in the book, "knee" is slang for white people; "knee" or "kneeblank" for black people; the Gottschalks are the main gun salesmen)