The avoidance of technologies by Old Order Mennonites and Old Order Amish is based not on a belief that the technology is in some way evil, but over a concern for the nature of their communities. Community is important to a Mennonite, and a technology or practice is rejected if it would adversely affect it. Many Old Order Mennonite groups reject automobiles but in an emergency even the most traditional Old Order Mennonite is likely to accept a ride in an automobile; those who sell milk in areas that require cooling will install electricity in the barn. Some of the groups that allow the use of cars and trucks, such as the Markham-Waterloo Mennonite Conference, will ensure that they are all black, even painting over chromed sections to achieve this effect.