void main()
{
    object oPC = GetEnteringObject();

    if (!GetIsPC(oPC)) return;

    int iCounter = 1;
    int iLoop;
    int iRandom = Random(2);

    if (iRandom!=0) return;

    object oEncounter = GetNearestObject(OBJECT_TYPE_ENCOUNTER, oPC, iCounter);
    while (GetIsObjectValid(oEncounter))
    {
        iCounter++;
        SetEncounterActive(FALSE, oEncounter);
        oEncounter = GetNearestObject(OBJECT_TYPE_ENCOUNTER, oPC, iCounter);
    }

    for (iLoop = 0; iLoop < (Random(iCounter/4) + 1); iLoop++)
    {
        iRandom = Random(iCounter) + 1;
        oEncounter = GetNearestObject(OBJECT_TYPE_ENCOUNTER, oPC, iRandom);
        SetEncounterActive(TRUE, oEncounter);
    }
}