It's intrusive for grandparents to think they're in charge. It's manipulative. Also, it's self-destructive, since if the parents have to resist you, you won't get your mitts on the kid as often.
Profound boredom, drifting here and there in the abysses of our existence like a muffling fog, removes all things and men and oneself along with it into a remarkable indifference. This boredom reveals being as a whole.