Out of the mouths of deponents
In Telfeyan v. NYC Transit Auth., the Third Department held that a Plaintiff who testified at her deposition that "I really don't know what happened, honestly," could not defeat summary judgment by submitting an affidavit that contradicted her deposition testimony. The Court also held that Plaintiff's expert's testimony was inadmissible because it was based on Plaintiff's affidavit (i.e., what her attorney wished she had said at the deposition).
Additional commentary about the case can be found at http://www.judicialreports.com/archives/2007/05/post_47.php

