There's no need to get angry. If there's something you don't understand, just ask. If it's something you do understand, there's no harm done, because you're not the only person who reads these discussions. I don't know what you know and what you don't. But I can tell you that the average reader doesn't know this stuff.
You repeated it inanely, as if I had overlooked it the first time.
I didn't merely repeat it. The key to the whole problem--which is the very fact that people fail to grasp, in my experience--is that Bob and Alice don't share the same axis of simultaneity. I wanted to make that clear. Perhaps you already knew that, or perhaps you just don't give a damn. But a layman trying to follow the discussion--you included, for all I know--would need to know it.
you expect far too much for your trouble.
Now who's being presumptuous? How do you know what I expect?