thanks ravi.
here is a story from a family i know well.
the couple had two daughter. the older was plain looking, average and was shunned by the father for most of her young age. she clung to her mother and grew him in fear of her dad. not sure of any physical abuse, but the fear and awe of father was there.
the younger one was feisty, beautiful, outgoing and daddy's pet. enough said.
now comes old age, and dad is now a widower. through circumstances it so happens the older daughter willingly takes care of dad.
close to dying, she has to clean him up, including bed pans etc. at that time, the old man opened up and said he appreciated her.
too late. this statement just opened up a pandora's box of sorrows and tears, which had been held up for over 45 years - the first daughter with no love from her dad, and a word of thanks only when she cleans his shit.