29 However, in some (older?) extension services, the personnel become somewhat elitist and isolated from farmers. These tendencies .-have been described graphically in Venezuela: The agents insist on being addressed as "doctor."...[They] never leave their jeeps to visit the houses but instead beckon members of the household to their car... The seem- ingly foppish cleaning of town shoes with a paper hander- chief to remove the mere suggestion of mud and the taking of fruit without asking are other perceived manipulations of the extension agents' sense of superiority. Similarly, in Colombia, "agents wore ties and suits when working in the field and refused to eat or talk with their peasant clients."2 The actual extent to which such behavior is associated with less advice and difficulties in communication with farmers is, of course, an empirical question meriting careful study; but in any event there is a consensus of opinion that farmers will not trust this 3 advice, regardless of its accuracy. D. Issues in Improving Extension Services Despite the difficulty in evaluating extension systems, and despite widespread problems, political support remains for extension programs, and they are likely to be maintained and expanded. Thus the practical challenge is not to gauge whether extension works in an overall sense or to list the problems, but rather to make particular R. Chesterfield and K. Ruddle, "Nondeliberate Education: Venezuelan Campesino Perceptions of Extension Agents and their Message," in T.J. LaBelle, ed., Educational Alternative in Latin America (Los Angeles: University of California Latin American Center, 1975), p. 153. Cited in Dennis Rondinelli and Kenneth Ruddle, Urbanization and Rural Development, A Spatial Policy for Equitable Growth (New York: Praeger, 1978), p. 92. 2Allen Jedlicka, Organization for Rural Development (New York: Praeger, 1977), p. 23. 3Rogers argues that communication will be better between people who are similar, and calls this the principle of homophily. Everett Rogers and F. Floyd Shoemaker, Communication of Innovations (New York: Free Press, 1971), p. 210.