  We critically examine interpretations of hypothetical supersymmetric LHC
signals, fitting to alternative wrong models of supersymmetry breaking. The
signals we consider are some of the most constraining on the sparticle
spectrum: invariant mass distributions with edges and end-points from the
golden cascade decay chain \tilde{q}_L -> q \chi_2^0 (-> \tilde{l}^{\pm}
l^{\mp} q) -> \chi_1^0 l^+ l^- q. We assume a CMSSM point to be the `correct'
one, and fit the signals instead to minimal gauge mediated supersymmetry
breaking models (mGMSB) with a neutralino quasi-stable lightest supersymmetric
particle, minimal anomaly mediation (mAMSB) and large volume string
compactification models (LVS). mAMSB and LVS can be unambiguously discriminated
against the CMSSM for the parameter point assumed and 1 inverse femtobarn of
LHC data at 14 TeV. However, mGMSB would not be discriminated on the basis of
the kinematic end-points alone, and would require further, more detailed
investigation. The best-fit points of mGMSB and CMSSM look remarkably similar,
making experimental discrimination at the LHC appear unlikely by any means.
