Two neighbors become involved in a shouting match. One neighbor is aware that the other has a heart condition but continues to argue even when the man with the heart condition becomes extremely agitated. The argument ends abruptly when the man with the heart condition succumbs to a heart attack, which, although not fatal, renders him incapacitated for the remainder of his life. Should the neighbor be held liable for his contribution to the victim's pain and suffering?

Incorporate at least one credible source to support your explanation.