An apparatus for helping to determine tactile sensitivity of a patient includes a housing and a probe supported by the housing and having a probe tip. A title generator is used to generate a multimedia title under control of input of the user. A first subset of the set of hardware nodes is found, such that those of the hardware nodes in the first subset are able to withstand a maximum number of failures before the graph disconnects. Additionally, the recess can be spread into an enlarged state by the actuating tool being positioned into the pocket and turned. The image and map may be transmitted over a local or wide area network, and the external device may be a computer, television, smart phone, portable phone, or other type of wireless access device.