I probably told you already, but at one night dive in Egypt, I had my torch pointed at a lionfish 2 metres away from me. The suddenly it moved 1 metre towards me, and grabbed a fish infront of my eyes. It seemed like it used the light to find the dinner...
The movement was so extremely fast, that I couldn't see it move, it just got one metre closer to me...
Being used to see how slow they move, this gave me a liiiiittle more respect of the lionfish.