Sam5 asked about the "speed" of the light that I saw move off.
I should have qualified that statement about the perceived speed. It's almost impossible to determine the speed of anything without any visible, stationary reference, and that goes double at night. I have no idea about the speed. CalamityJaimie claimed she saw the lights "bounce up and down", I didn't. And, we had nothing to drink beforehand.
GeorgieB