Although you are in a secluded area, you don't share your INET connection with anyone, and you don't move about with your MBP--'it stays at home' the fact that it is a portable-- that is to say a MacBook Pro-- it indicates to me that the MacBook has been somewhere where this junk yard 22 was a network that it connected to.
[[BTW: A few pertinent sleuth questions I think should find themselves into the-mix, so to speak; are:
1. Are you the "administrator?" and
2. Do you share your MBP with anyone, or have you let some one "use it right quick"? and last, but a BIG last:
3: Are there any minors in your home??
The answers to some of these questions might render this whole post moot...
So. As was referred to in one of the other posts from "Mac in win",:
Go into "SETTINGS", "NETWORK", "ADVANCED..." and if you STILL see it in your list of "preferred networks" at this point I would recommend you do this:
1. Select the network you want to get rid of: 'junkXYZ'
2. Click the "-" button below.
ADDITIONALLY: For all-around safety,
UNCHECK "remember networks this computer has joined"
CHECK (if you have administrator access-if you don't contact who ever set up your MBP) "require administrator authorization to:
*Create Computer to computer networks"
* change change networks"
*Turn Wi-Fi on or off"
Then click OK.
This should make you rest a little better. HOWEVER, since this is a connection you're not familiar with and you don't know when you (or your machine) came in contact with it, your machine may have been compromised on some level-- because at one point in time IT DID connect with junkyardwhatever...I'd investigate and reset all my network settings--AFTER COPYING ON PAPER WHAT THOSE SETTINGS ARE-ESPECIALLY YOUR internet connection.
Another answer could be that that the network of the person who last owned the machine, set up the machine, or it is a old network that was set up in your home when the wireless router was setup.
I hope this helps, And may fortune shine upon you.
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Where to find answers to life's BIG QUESTIONS: JW.ORG