  We perform simulations of structural balance evolution on a triangular
lattice using the heat-bath algorithm. In contrast to similar approaches---but
applied to analysis of complete graphs---the triangular lattice topology
successfully prevents the occurrence of even partial Heider balance. Starting
with the state of Heider's paradise, it is just a matter of time when the
evolution of the system leads to an unbalanced and disordered state. The time
of the system relaxation does not depend on the system size. The lack of any
signs of a balanced state was not observed in earlier investigated systems
dealing with the structural balance.
