  We study boundary scattering in the $\phi^4$ model on a half-line with a
one-parameter family of Neumann-type boundary conditions. A rich variety of
phenomena is observed, which extends previously-studied behaviour on the full
line to include regimes of near-elastic scattering, the restoration of a
missing scattering window, and the creation of a kink or oscillon through the
collision-induced decay of a metastable boundary state. We also study the decay
of the vibrational boundary mode, and explore different scenarios for its
relaxation and for the creation of kinks.
