This is really simple and has probably been posted before, but it hasnt been reposted in a while so i think i may just do it
1 Make a macro like this
2 wait for someone to send you a tell or advertise to make portals for moneyCode:/uninvite /logout
3 when the person pays you, quickly use this macro to get him out of the group and logout
this trick should be used if you are really pissed off or if you like kicking dogs for fun. Otherwise, it could alsobe used to make a quick gold or two