In business litigation, the question of whether a party's spouse is fair game for a deposition often comes up. Sometimes, the question arises simply because a lawyer wants to demonstrate the willingness to "take the gloves off." Other times the issue arises because the spouse may be one of the only people likely to have knowledge of facts that could be central to the case. Regardless of the reason, Massachusetts lawyers should be aware of the applicable rules and the distinction between the spousal privilege and the spousal disqualification, which are set forth at M.G.L. c. 233 sec. 20(a) and (b).