  Massive particles are radiated from black holes through the Hawking mechanism
together with the more familiar radiation of massless particles. For $E >= m$,
the emission rate is identical to the massless case. But $E < m$ particles can
also tunnel across the horizon. A study of the dispersion relation and wave
packet simulations show that their classical trajectory is similar to that of a
boomerang. The tunneling formalism is used to calculate the probability for
detecting such $E < m$ particles, for a Schwarzschild black hole of
astrophysical size or in an analogue gravity experiment, as a function of the
distance from the horizon and the energy of the particle.
