So I got a strange request yesterday asking to purchase one of my domains (they originally asked how much I'd sell it for).
I originally replied that I was interested at this time, but they responded back with a really good offer.

Unfortunately, I've never heard of this person and a google search doesn't really return anything useful. I'm still not 100% certain I'd sell it, but the offer is really good that it makes me want to consider it. I've had the domain for many many years and don't really have a lot tied to that specific domain (2 e-mail addresses that I literally created this year, 1 site).

So here is my question
1) If you were originally not interested in selling your domain and then were given a very reasonable offer, would you change you mind? What considerations would you be thinking about?
2) How would you go about selling it to ensure you are not a victim of a scam seeing how you have never had any interaction with this person previously?

Your opinions will be greatly appreciated.