  Through the AdS/CFT correspondence, Lifshitz spacetimes describe field
theories with dynamical scaling ($z \neq 1$). Although curvature invariants are
small, the Lifshitz metric exhibits a null singularity in the IR with a large
tidal force that excites string oscillator modes. However, Lifshitz is not a
vacuum solution of the Einstein equations -- the metric is supported by
nontrivial matter content which must be taken into account in analyzing the
propagation of test objects. In this paper, we consider the interaction of a
string with a D0-brane density in the IR which supports a class of UV-complete
$z=2$ Lifshitz constructions. We show that string/D-brane scattering in the
Regge limit slows the string significantly, preventing divergent mode
production and resolving the would-be singularity in string propagation.
