About the myths: I’m not surprised you can’t dodge a bullet aimed at your chest, but what about one aimed at your head? That would require much less movement.
And while water may not be compressible, it is easily displaced.
One thing they did last night that bugged me- when the timing foil for the gun didn’t work at first, they did not show us how they fixed it, or tell us why it didn’t work in the beginning. I learn as much from their experiment set up as I do the experiments, and I really wanted to know more.