Certainly when Chandrasekhar was explaining his ideas to Dirac he continually interjected "yes" then explained to Chandrasekhar that "yes" did not mean that he agreed with what he was saying, only that he wished him to continue.
Totoong kapag Chandrasekhar ay nagpapaliwanag ng kanyang mga ideya sa Dirac siya patuloy na interjected "yes" at pagkatapos ay ipinaliwanag sa Chandrasekhar na "yes" ay hindi ibig sabihin na siya ay sumang-ayon sa kung ano siya ay kasabihan, lamang na siya ay nagnanais sa kanya upang magpatuloy.