Is there a way you can destroy an instance when a character zones out of it? I am using Akkadius's sendtoinstance plugin, but I was considering trying something like 
	Code:
	  my $i_id = quest::CreateInstance("arena", 1, 360);
  quest::AssignToInstance($i_id);
  quest::MovePCInstance(77, $i_id, -41, 131, -0.5);
  quest::setglobal("InstID", $i_id, 5, "F");
 on the instance giver. Then doing
	Code:
	sub EVENT_ZONE{
 quest::DestroyInstance($qglobals{"InstID"});
}
 on player.pl in the arena. Would this create any issues in any way?