  Baryon number violation is our most sensitive probe of physics beyond the
Standard Model, especially through the study of nucleon decays. Angular
momentum conservation requires a lepton in the final state of such decays,
kinematically restricted to electrons, muons, or neutrinos. We show that
operators involving taus, which are at first sight too heavy to play a role in
nucleon decays, still lead to clean nucleon decay channels with tau neutrinos.
While many of them are already constrained from existing two-body searches such
as $p\to \pi^+\nu$, other operators induce many-body decays such as $p \to \eta
\pi^{+} \bar\nu_\tau$ and $n\to K^+ \pi^-\nu_\tau$ that have never been
searched for.
