Canned tuna is reliable, but it's hardly a glamorous lunch (unless you're a cat). It often contains less mercury than fresh tuna fillets, but fresh or smoked tuna tends to have a better reputation ...
It is not unusual for dogs to beg for food while someone is eating, but one pup is content to wait for more than just leftovers. The clip, captioned "I just ate a tuna sandwich and she's been ...