  A model for SU(n) string breaking on the lattice is formulated using strong
coupling ideas. Although necessarily rather crude, the model gives an explicit
picture of string breaking in the presence of dynamical quarks as a mixing
phenomenon that involves the string state and a two-meson state. A careful
analysis, within the model, of the Wilson loop shows that the evolution of the
mixing angle as a function of separation may obscure the expected crossover
effect. If a sufficiently extensive mixing region exists then an appropriate
combination of transition amplitudes can help in revealing the effect.
  The sensitivity of the mixing region to the values of the meson energy and
the dynamical quark mass is explored and an assessment made of the
dectectibility of string breaking in a practical lattice simulation.
