woot OMG ! after 30 min reading and reading i will explain it ! (say me thx!) :P
1_You got 2 chars , one of them don't have anything (lvl1) and the other got like draconic bow
2_ one man want to buy a Draconic bow with 5 coin , what u have to do is :
trade him with the LVL 1 char , minimize ( i think its easy) , than open the window of ur char who got the draco bow , PM that man , say him u sell it for like 3 coin , go trade him , show draconic bow in trade , he will show u 3 coin and he will accepte , u Mustn't accepte !!!!
3_ go back to lvl1 char , accepte trade , and boom u got 3 coin he got nothing !
if u don't understand just say it i will try to explain more