Exactly what bad thing will happen if they have a little chocolate? When my first son was little, I was fr3eaked out about evrything. Now, I have three boys ages 6, 4, and almost 2 and I am much more philosophical about things. My boys have a terrible reaction to food coloring, so there is a zero tolerance policy to that. Their behavior gets really bad with a build up of corn, soy, or dairy, so they can have some, but not alot. but, I do not usually deny them food. I do not want food to become a big deal to them. Also, the child, grandparent relationship is so precious that I am quite a bit more lenient with it. I want them to have good momories of each other, not memories of resentment or deprivation.
So, her is what I would do in that situation: After gps went home, I would sit the kids down and talk about how nice it was of the gps to give them so much candy. Then, I would remind them that a lot of candy isnt good for them and that there are other little kids in town who dont have any candy. SO, I would let them choose a weeks worth(maybe two per day) and tell them that whatever they dont choose we will take to a food bank or to a widow in the neighborhood. Then they would choose adn we would put it in the basket and put the basket up. Then, every night after supper, we would have a splendid treat and talk about the treat that grandpa gave us. We would probably call grandpa at some point during the week, while we were enjoying our treats, and thank him again for the treats, and tell him how much we are enjoying them and tell him what we did iwth the rest of them. If gd gave me grief for giving it away, I would thank him for giving us SO much that we did have enough to give away,a nd spread the true Easter spirit around some.