  We consider a variant of the standard electroweak theory in which the Higgs
sector has been modified so that there is a classically stable weak scale
soliton. We explore fermion number violating processes which involve soliton
decay. A soliton can decay by tunnelling under the sphaleron barrier, or the
decay can be collision induced if the energy is sufficient for the barrier to
be traversed. We present a classical solution to the Minkowski space equations
of motion in which a soliton is kicked over the barrier by an incoming pulse.
This pulse corresponds to a quantum coherent state with mean number of $W$
quanta $\sim 2.5/g^2$ where $g$ is the $SU(2)$ gauge coupling constant. We also
give a self-contained treatment of the relationship between classical
solutions, including those in which solitons are destroyed, and tree-level
quantum amplitudes. Furthermore, we consider a limit in which we can reliably
estimate the amplitude for soliton decay induced by collision with a single
$W$-boson. This amplitude depends on $g$ like $\exp (-cg^{-1/3})$, and is
larger than that for spontaneous decay via tunnelling in the same limit.
Finally we show that in soliton decays, light $SU(2)_L$ doublet fermions are
anomalously produced. Thus we have a calculation of a two body process with
energy above the sphaleron barrier in which fermion number is violated.
