I consider a spotlight or bright flashlight essential in Larry's situation. When you see two lights rapidly approaching, one red and one green, shine a really bright light right at those lights. The brighter the better. You can also yell and swear, but the spotlight works better. A spotlight is your best defense.
I also carry a small waterproof 2xAA flashlight that came with an optional red lens. I think the brand is Maglite and the lens is quite dark. It has to be dark or even a red light will interfere with your night vision. I usually run with my gauge lights off. Too bright. Hat over the compass if it is too bright. Then I can use the red flashlight to glance at instruments, but mainly I'm looking out to study the array of lights on the water and how they are moving in relationship to me and to the other lights.
Nice thing about the little red pen light is that if you need something, gloves, cookies, whatever, there is no need to turn on any cabin lights.
Running at night is like driving at night. I used to enjoy it more than I do now. Also, I've always had displacement boats and I was fairly confident that those hulls could handle hitting large debris at 7 knots. I would have confidence that a C Dory could do that at 7 knots. Speed above that is like racing down the freeway at night with your headlights off. Haven't done that in years.
Mark