  Resistivity saturation is found on both superconducting and insulating sides
of an "avoided" magnetic-field-tuned superconductor-to-insulator transition
(H-SIT) in a two-dimensional In/InO$_x$ composite, where the anomalous metallic
behaviors cut off conductivity or resistivity divergence in the
zero-temperature limit. The granular morphology of the material implies a
system of Josephson junctions (JJ) with a broad distribution of Josephson
coupling E$_J$ and charging energy E$_C$ , with a H-SIT determined by the
competition between E$_J$ and E$_C$ . By virtue of self-duality across the true
H-SIT, we invoke macroscopic quantum tunneling effects to explain the
temperature-independent resistance where the "failed superconductor" side is a
consequence of phase fluctuations and the "failed insulator" side results from
charge fluctuations. While true self-duality is lost in the avoided transition,
its vestiges are argued to persist, owing to the incipient duality of the
percolative nature of the dissipative path in the underlying random JJ system.
