You know how computer trojan virus client / server hacks work? The hacker gets a server program on your computer somehow and then uses a client component to make the server program do things on / to / from your computer.
You know how those computer racing car games can be played with a force feedback steering wheel? Have you ever seen one of those force feedback steering wheels in action... yeee gods... they got the shake, jiggle and studder thing down hard core...
OK... so mix these two ideas up a bit... and I was thinking, you could lean back against your force feedback steering wheel and a remote user could use a client / server program to give you a back rub...
Then I started thinking about force feedback joysticks...
Then I started to giggle and had to stop.
:D