I told Grandma, "Eh Grandma! I'm in on this company LXGTF that developed a cheap, easy to use device that anyone can use that tells you if a heart attack is coming." Grandma said, "Not impressed. I beat you to it. See this? Its a tape measure. I can measure your height and your belly and tell you if a heart attack is coming."HAHAHAHAHA dang Grandma....