It's not about greed.
I made a mistake and bought Retik Tokens in presell which result that I probably won't see nothing from it, on the other hand I know someone who can do something and get my eth back(eth which I bought these tokens with),for that matter he need the control (with my wallet secret phrase).
I know it sound extrmely scammy but ,worse case is he will get the crappy retik tokens(currently hadn't been claimed yet...and plus 14$)...
On the other hand , if it not a scam like I can get my eth back...he asked me to move all my assets from my wallet before getting control of it. He was honest on that thing
So you gave your wallet recovery seed to someone you know? if he has warned you to move your assets. then do it, leave the wallet empty. there is a high probability that you will lose the tokens that you mentioned in your participation in the presale.
The outcome of this case is not yet known, right? So try to have a good relationship with that person. I hope you are not cheated in your case.