Dunnu, I usually force people to do stuff rather then pay (given that I not do "toilet papet pirate RP"), now I force them to drop half of their cargo and shot it themselves, or sometimes even more then half, the important part is that THEY shot the cargo, some people said they won't waste their time shotting it and simply tried to continue on, so I killed them. The weird thing is that usually people do drop what I say, but refuse to shot it themselves...