I don't know the guy but sounds like a pretty weak reason to ditch a deal to me...........
On the weekend I "sold" my van to a guy who said he would take it for $1550 and pick it up tomorrow as is where is without the stereo in it.
I ripped the stereo gear out Saturday night and called him on sunday only to have him say............."Oh sorry man I should of text you sooner I changed my mind and can't come up with the money".................
...........My reply " SWEET DUDE CHEERS FOR BEING A ****!!!!!"
Rest easy knowing that the world is full of these type of people.......most of the good buggers ride NSR's so your safe here.......