*            The amount that the other creature is interested in sharing
     * @return true, if the combination is accepted, otherwise false.
     */
    public synchronized boolean requestCombo(Plant plant, int amount) {
	if (!hasPartner() && !isAPartner && plants.contains(plant)
	    && amount > 199) {
	    WorldFrame.log.append("Intel Creature " + getCreautreNumber()
				  + " combo request received \n");
	    plants.remove(plant);
	    gainEnergy(amount);
	    return true;
	}
	return false;
    }