Grapes and Dogs

So Kaylee is in the living room eating grapes and our dog, Jasper, is in the living room watching her eat grapes when this conversation begins:

Kaylee: "Mom, can Jasper eat grapes?"

Me: "No, grapes are poison for dogs"

Kaylee: "Jasper, spit that out!!!"

Me: "Did Jasper try to eat a grape?"

Kaylee: "Um, no, why?"

I can't imagine why I would have jumped to that conclusion!