...... so many others here frequently give advice on shit about which they know nothing, why should I be any different?  

I had something similar happen, when a provider popped on as a "suggested friend" on FB. It was a good thread on the newbie board a couple of weeks ago.  One of the upshots was to turn off the location feature on my phone. I generally don't want my meandering tracked, even when I'm off saving widows and orphans and rescuing kittens. I also took FB off of my phone, since it was becoming a dangerous time-waster.

Go to the Facebook app on your phone, then:

Go into the settings of your phone and turn off the GPS function associated with Facebook...

You need to go to settings>privacy>location services (assuming an iphone) and turn off location services for facebook and every other app where you don't want it using the GPS on the phone to track you.

It's spelled D-I-V-O-R-C-E, and believe me IT'S WORTH IT!

I've had random sand clients popping up on possible friends list since I've been in the US and it freaked me out. I had the find location always thing on and now it's off so thanks!!

I have an Andriod phone.  I keep GPS off (mostly to save battery life.)

When you shut the FB Nearby Friends feature, it will default to a setting that will show you as being at some other location that you can program in:

the other day fB "asked" if I wanted to share photos from my gallery

In addition to keeping audit trails every where you go. They have access to all types of things on your phone and wear down the cellphone battery.