The pup had a bout of diarrhea about six weeks ago. I took him to the vets and he had a robotic paste thing that looked like a mastic gun, chicken and rice for a few days and it cleared up. This morning he has a dodgy tummy again. Fine in himself, scoffing with abandon etc. He has just got back from boarding, do I suspect he's noshed someone else's dinner and it's disagreed with him. Rather than rush back to the vet, would it be ok to put him back on a bland diet and see how he goes do you think? Also, are some dogs more prone to upset digestive systems?