Moral of the story: never use scambay
I was paranoid then, as I posted out a 4670K Engineering Sample CPU that I sold via ebay last week.
I posted it over via RMSD and put it in an envelope, but I did put it into one of the clear plastic boxes that retail CPU's are in when you buy a new one.
I also padded the envelope out.
Would have sold it via MM, but ES CPU's are not allowed.
awesome timingIntel Core i5-4670K 4670K - 3.4 GHz Quad-Core Processor See original listing
Intel-Core-i5-4670K-4670K-3-4-GHz-Quad-Core-Processor
Item Ended
Item condition:Seller refurbished (hahhaha)
“Hardly used” ( ok m8 )

That doesn't look like a 4670k to me. They don't have a lip going all around the CPU, they have a pair of 'wings' for want of a better description.
Doesn't add up
Seller didn't post with high insurance
Damage could not be done by RM
Buyer has evidence postie took the parcel back that day (does he?)
If so, it really doesn't make sense