If your going to use a freind why not do this.
1) Both get nogenfoger elixir (or be same faction and have the same gear and look exactly the same)
2) Get your freind to stand exactly where you are (so the victum cant see him he can only see misshapened you)
3) Advertise you want to D/E crap fo tip (for a little extra cash

)
4) When the victum messages you and comes to you and trades all his crap with you tell him that you didnt recieve anything or have been traded anything (at this time your freind should be loggin out)
5) Move away from your freind as he logs out and say "Damb you must of traded that guy man damb real sry man :P"
6) wait for your friend to log back in and sell D/E w/e and share the profits
