  A common remark at conferences and meetings has been: "One can fit any light
curve with binary lens models because of the large number of parameters!" It is
especially tempting to claim that some of the possible binary events in the
Galactic microlensing searches could be caused by cataclysmic variables since
both phenomena exhibits asymmetric light curves. This paper presents a
statistical analysis comparing the light curves of cataclysmic variable stars
to the light curves generated from binary lens models. It is shown that the
light curves of high amplitude cataclysmic variables are one example of light
curves that can not be explained with binary lens models. It is, therefore, not
only unlikely, but also impossible that cataclysmic variables can contaminate
the binary microlens candidates.
