In this troubled age in which we live, we should note that a cell phone has several times been mistaken for a hand grenade, with lethal consequences. If you must use one of those things, keep it in your pocket until you are in a serene setting!
It has been said that if you are not a socialist by twenty, you have no heart; and if you are still a socialist at thirty, you have no head. Guru say: If you are not a curmudgeon by eighty, you have not been paying attention.