Question: On my MacBook, in the Finder's sidebar there's a machine appearing under "Shared" that I don't recognize and definitely doesn't exist on our local network. When I attempt to connect to it, I get this message:

> 
> The server "otseeley-remote" is available on your computer. Access the volumes and files locally.
> 
> 
> 

What is this and how do I get rid of it? I already checked Disk Utility and there are no extraneous volumes mounted or anything.

EDIT:

Additional information based on the questions below:

* There are only two computers on the network, both running Mac OS X - this MacBook, and my PowerBook. The PowerBook shows up in the source list as a separate item from "otseeley-remote"
* There is no Time Capsule on the network, though I do have a Time Machine drive plugged into the PowerBook (not shared, though)
* No VPN
* One wired printer, connected to the MacBook
* Two other wifi networks other than my own appear in the wifi dropdown, so I suppose it's possible that the mystery machine is on a neighbor's network (though why would it show up in my source list?)

EDIT 2:

The mystery computer shows up on both my MacBook's and PowerBook's source list, but not always at the same time. Sometimes it appears on one and not the other; other times, it appears on both.

EDIT 3:

I have two user accounts on the MacBook and both accounts show the "otseeley-remote" item in the Finder. Not sure if that means anything, but just wanted to add another data point.

Answer: 
Similar to what josh is saying, I would try and see if you hit this with some sort of network trace. What I recommend for easiest use is [Bonjour Browser](http://www.tildesoft.com/). This program lists all the bonjour services and who is advertising them, in this case we are talking AFP probably. I use this often at work to find who is using an iTunes shared library in two clicks.

Just run the app and it will display all computers on the network who offer Bonjour services and you can expand the type of service to see which computers are offering it.
In 10.7 removing the "shared" phantom computer can often be done by going to System Preferences>Sharing – then toggle on and off all the radio buttons that contain the word "sharing." This should reset the sidebar to default.