My father, can't really do much for himself without prompting, so we provide care for him daily but do need to leave him for a few hours on his own each day and at night (so far). I was thinking of a pendant or wrist personal alarm to detect any falls but i get the feeling he would likely take it off or forget to put it on - rendering it useless. I know he would not remember that he could push the alarm button if he needed urgent help or might push it willy nilly perhaps forgetting what it is for.. Any advice?