granny dumping
The abandonment of an elderly relative in a public place or facility, especially a hospital or care center, so as to relieve oneself of the duty of caring or looking after him or her. While I know how stressful caring for your elderly parents can be, I'll never understand how anyone could consider granny dumping an acceptable option.
granny bashing
The physical, psychological, or verbal abuse or assault of an elderly person or persons. While the abuse of children garners a huge amount of attention from the public, granny bashing seems to go largely unnoticed in comparison.