In times of social networking this title might sound obvious but I want you to push your imagination a bit ahead...
Did it ever happened to you to accept/confirm a friendship from someone you don't really know?
Most probably yes.
Me, I am very strict: either I had at least a cup of coffee with the mentioned person (or an ice- cream) OR we share the same surname. Which is wrong because the last isn't a guarantee for a real friendship or anything but I just think we are all a big family and we don't choose our relatives anyway!
But...what if then you find out that your "relative" is kind of an ass?Or that you don't share political views at all?You've incorporated another Mr. someone to your family and now regret it?
This is what happened to me, so I'll never trust family members again until they at least offer a cup of coffee - then I will decide.