They appeared to be upset and that was awful. Despite the fact, it was not something that he considered to be an issue of his own to bother with. They would soon realize that they were making a terrible mistake and they would then proceed to get on with their lives. It was that or they'd end up in a mental institution; something that was still very much not his problem. He had too much to worry about as it were, Sam was not going to force more into his schedule. He would let them be and if they didn't learn to do the same, he would find some way to get them off his back one way or another. Even if that meant that he had to seek out the help of the city's authority figures. The police may have been useless in the sense of apocalypses and monsters, but they did know how to take a regular pair of lunatics and deal with them accordingly. That was, at the very least, what they could do for the people who were really keeping their city safe.
While he was very stern on his belief that the two of them were completely mad, that did not mean that Sam couldn't be sympathetic at the same time. He offered Mary a faintly apologetic look, then briefly did the same to the Angry Boy. Or, to better phrase it, the back of Angry Boy's head. He was packing up. Good.
"You are both mistaken," he repeated, this time a lot more clearly than before, "I am terribly sorry."
That was all that he could say or do for either of them. He would not pretend that he was the person that they claimed him to be for the sake of keeping them happy. That was not his duty. Giving them both a nod of finality, Sam turned and began to retreat toward the training area. He'd find a way to ignore the slight twinge of guilt in his gut, even if that meant that he had to take part in Kennedy's training in a painfully annoying physical way himself.