The art of pushing at a Person's weak point, until he dies

Satsvarupa Dasa Goswami: He said he wanted to visit Dvaraka as he had never been there, and never been to Hardwar or other holy places all over India. I was much more serious about hearing from my spiritual master than in visiting holy places. He noted this and he liked me for it. He said he knows the art, like karate, of pushing at a person's weak point until he dies. In argument he said he finds out their weak point and pushes on it until they die.