Abstract: A safety harness for use with a connecting device including a connecting element coded with a connecting element indicator includes an internal connection and an external connection. The internal connection has a first portion and a second portion. The first portion is coded with a first indicator, and the second portion is coded with a second indicator. The first indicator and the second indicator indicate that the first portion and the second portion are to be interconnected to create the internal connection. The external connection has a connecting member, and the connecting member is configured and arranged to operatively connect with the connecting element of the connecting device. The connecting member is coded with a third indicator, and the third indicator and the connecting element indicator indicate that the connecting member and the connecting element are to be interconnected to create the external connection.

Abstract: A badge emits light to signal that the person wearing the badge has clean hands. The light is discontinued after a period of time to indicate that the person should proceed to wash his/her hands. The badge may emit light in a distinct manner (or generate sound) during a time period in which the person is supposed to be washing his/her hands. This distinct signal would be generated in response to user input, which should be entered only when the person wearing the button is beginning to wash his/her hands.