Underlings and their boss don't tend to react the same way. Underlings simply follow orders, their boss may actually give a chance to talk and try to weasel a way out of their plans. And if all fails, at least there's time to taunt and mock them when everything's hopeless.

[Speaking from experience! Leaving aside that, well, she died. Or so she was told. It's complicated]

...that's what happens when you don't establish your own terms. Don't meet in places where you don't have some control over the situation, that's basic.