#include "debug"

void main() {
    object oPC = GetLastUsedBy();
    object oChair = OBJECT_SELF;

    if (GetIsPC(oPC)) {
        //debug("sit down...");
        if (GetIsObjectValid(oChair) &&
           !GetIsObjectValid (GetSittingCreature(oChair))) {
            AssignCommand(oPC, ActionSit(oChair));
        }
    }

}