I am the topic starter.
I live in Germany and have been offered to sell my bitcoins for 6% above market value.
The guy I was in contact with said, it would be safest if I am going to fly into his country (Eastern Europe) to do the deal (he would also pay the flight tickets for $400).
The guy who wanted to give me the money (cash or bank transfern in currency EUR) didn't want to travel to Germany for some strange reason (e.g. he earns so much money that it is a waste of time).
As an alternative he suggested, that I can stay at home and I should send him 0.2 bitcoins first and then he would send me the money € 3,333 via bank transfers. And in the next step he has the full risk by first sending me €6.666 and I will send him the remaining 0.4 Bitcoins.
I had very big doubts, after all, he could have disappeared with my 0.2 bitcoins and could not continue to send me the money by bank transfer.
Ultimately, I looked for an Escrow service here.
I suggested this escrow service to the guy in Eastern Europe and he refused by telling that the had bad experience is with such an escrow service.
Overall there were a lot of more warning signs and I'm really glad I didn't trade without your Escrow services.
Maybe everything could have gone well but I think I could have faced a danger.
Your getting robbed my friend. 99.999999 % sure.