  In this talk, I will present the general structure of RPV couplings when a
Froggatt-Nielsen horizontal symmetry is responsible for the flavor structure of
both the SM and the MSSM. For sub-TeV ({\it natural}) SUSY, lepton number must
be an accidental symmetry, while low-energy SUSY is still allowed by baryonic
RPV, which lowers the MET signature of superparticles decays. The largest RPV
coupling involves the stop, and it is constrained between $10^{-3}$ (from
FCNCs) and $10^{-9}$ (from LHC searches).
