It can be tedious to wade through depositions and other materials that are available in some court records–particularly ones that do not involve inheritances or family squabbles. The testimony can seem repetitive, tedious, and dull. Often it relates the issue at hand–a financial problem, the unwillingness to pay a debt, the dissolution of a partnership, etc.
But sometimes there will be a word or a phrase in a deposition that can be genealogically significant. Someone will refer to someone else as “my brother,” “my sister,” etc. There are times when those two words make it worth wading through all the other verbiage and legal minutia.