Your grandson sounds like my four year old. He is against killing baby animals, but not adult animals. At a recent feast I acquired a taste for lamb. When I would mention getting some he would say he doesn't eat baby animals. He realized the lamb at the store was already dead and that wasn't changing. I came back from the store saying I had thought of getting lamb chops, but had not. He said, "But, I want to eat lamb chops."
LOLL yep that sounds like Marshal punky. We think he is his Uncle Kelly reincarnated. LOL Yesterday, they were all at a "thing" and other small children were around. He and his little sister (3, who both are called the playground rapists by the mom, were each having a ball. Neither Cassie or Marshal have no strangers as far as other kids are concerned. Marshal punky was busy throwing hay on the little girls (this was at a ranch) and trying to kiss them. When one little girl ran to her dad yelling he's trying to kiss me, Marshal punky said "I just want to play. I just want to kiss you" all the while laughing gleefully (or evilly LOL) Her dad said she better hang on to him since he is so cute. Daughter said "ugh! No he isn't" I told his mom I bet she didn't run TOO fast.