Abstract: Supersymmetry is a possible realization of new physics we could expect the LHC to observe in a few years' time. Currently, almost all SUSY phenomenology done in preparation for LHC is restricted to 2 -> 2 scattering, plus cascade decays. I demonstrate with a few specific examples the need for going beyond this approximation: it affects both the interpretation and scope of extracting information from new physics signals in the hadron collider environment.