Grapes are arguably the most stylish snack there is. An image of a Roman resting on a chaise lounge lavishly dropping them into their mouth one by one comes to mind. Dog owners, though, should keep grapes away from their pets at all costs. Tina Hölscher, a vet with German animal rights organization Aktion Tier, doesn’t beat around the bush: “Eating grapes can quickly cost a dog their life,” she says. The seeds and skins of grapes in particular contain substances that can impair a dog’s kidney and liver function. Unlike with some other foods, even small amounts of grapes are potentially harmful…