1. A system, comprising: a first display device configured to request authorization by transmitting a request signal before performing a restricted activity, receive an authorizing signal, and perform the restricted activity in response receiving the authorizing signal; and a second display device configured to receive the request signal from the first device, display an authentication input for authenticating an authorized user of the second device, display an authorization as for authorizing the restricted activity on the first device, and wirelessly transmit the authorizing signal if the second device is authenticated and if the first device is authorized.