  In contrast to the decay products ensuing from a fast moving particle which
are collimated along the original direction of the parent, those from a slow
moving particle are distributed over a wide region. In the context of searches
for heavy long-lived particles (LLP) at the Large Hadron Collider (LHC), we
quantitatively demonstrate, using a few benchmark models, that objects which
emerge from a secondary vertex due to the decay of an LLP at the TeV scale can
be at large angular separations with respect to the direction of the parent
LLP. A fraction of the decay products, the backward moving objects
(\textit{BMO}s), can even go in the backward direction. These will give rise to
striking signatures in the detectors at the LHC as these particles will
traverse different layers of the detector {\it outside-in} towards the
direction of the beam-pipe. Based on a simple geometrical modelling of the
detector, we give examples of how this effect translates into the fraction of
energy deposited in the tracker, from particles coming as far as from the
hadron calorimeter, as well as those that could be entering from outside the
detector into the muon chamber. The largest effect is from LLP candidates that
come to rest inside the detector, such as the stopped $R$-hadrons. But the
results are promising even in the case of not so heavy LLPs and/or when some of
the available energy is carried by a massive invisible daughter. This urges us
to look more in details at these unusual signatures, taking into account the
particularities of each layer that constitutes the detector. From the
\textit{BMO} perspective, we review how each layer of the detector could be
exploited and what improvements can be made to enhance the shower shapes and
the timing information, for instance. We also argue that the cosmic ray events,
the most important background, can be easily dealt with.
