  We present simulations that show that an ideal two-dimensional foam with a
finite contact angle develops an inhomogeneity for high liquid fraction $\phi$.
In liquid-liquid emulsions this inhomogeneity is known as flocculation. In the
case of an ordered foam this requires a perturbation, but in a disordered foam
inhomogeneity grows steadily and spontaneously with $\phi$, as demonstrated in
our simulations performed with the Surface Evolver.
