Had I any idea of the potential problems then I would of made him chuck it up. Spent all day reading about it, some mixed opinions about grapes/raisins, etc but either way he's going in tomorrow just to get him checked over to be safe. Fingers crossed the vet is right and its all passed through by now and the richness is what's unsettled his stomach resulting in food coming back up. Bracken Boy, it was put right out the way, god knows how he got it.