Jack, I thought I remembered you posting that your guide had helped out. But this one was really not the same type. It wasn't just me. Everyone complained that she was just trying to get the tour done in the shortest amount of time.
I did manage the tour of St. Malo and the corsairs house. And the optional to Dinan, although there again I parked myself in a square at a table under an umbrella with a bottle of water and watched the crowds. Some of the group came back and joined me after a while. That other little town (name escapes me, but it begins with an S) was delightful. Most people walked down with Peter (local guide), but some stayed in the bus down to the beach.
I love seafood, especially oysters and mussels, so the meals were a real delight.