He has no idea what the hell he hit to cause this kind of reaction. Something about not being able to take care of himself? Not being able to take care of others? It's not enough to make him give the man much pity. He just has to keep going with this shit, doesn't he? All for the sin of Miles trying to cheer the man up. He thought Daryl would appreciate a bit of hardassery.

His eyes flash with anger at the stream of invective. And then - with practiced skill, he steps forward to try to drive his elbow hard into Daryl's side. A light but firm kick aimed at the back of his knee to bring the other man down. And then all of his (admittedly light) weight applied to try and pin the man. Miles is not large, no. And he can't use a bow. But he is still a soldier, dammit, and he knows what he's about.

Daryl may just get out of the way instead, but he's damn well going to try to bring him down. Gently.