Yosef Karo

“ If he forces his father to grind with the millstone, but he has good intention to save him from worse work, and he speaks words of appeasement on his father’s heart and shows him that his intention is good (to the father) such that he is convinced to grind with the millstone; (he that does so) inherits the world to come. ”

“ And he shall not call him by name, not during his life nor his death. Rather he shall say “My father, my master.” If his father’s name was the same as the name of others, he should change their names, if it is an unusual name that people are used to using
HGH: But a name that people are accustomed to use, he permitted to use for others, if it is not in front of [his father] . ”

“ Seif 10 - One whose father or mother became senile, should make an effort to behave with them in accordance with their mental ability until there be pity upon them. And if it is impossible for one to stand it, because they are too mentally disturbed, he should go and leave them and command to others to take care of them properly. ”