To be clear, this is not how most adults behave, so that lady and the people making fun of him are genuinely sounds like a certified pile of $h!t. Don’t let this get to you or your husband. I know this is tough situation, but please fight it. Most people with stutter are too scared of fighting back because of fear of being mocked. But ask your husband to show them that he’s not afraid. Fully grown adults should not be mocking others. They’re the problem, and they should be paying the price. Not your husband