The real test of a good flight deck crew is to continue flight operations at the same tempo as you do in daytime, without any more casualties. It was always tougher because during the day you usually saw the bad stuff coming at you, at night it was always a surprise when something bad happened to you.
Now, I loved the night. But I have always had great night vision. One of the Native American traits in me was really good night vision, coupled with red colorblindness (the true blindness not the color dysfunction which most people have) I could see all the things that made working at night miserable. Tie down chains, boarding ladders, props or rotors, power cables and fuel hoses. All of these trip hazards I could see pretty well. Most guys that work the flight deck sport a horrible rash on their shins, known as "Tie Down Chain Rash", it comes from stumbling into chains used to tie the aircraft down. The skin being scraped off you shins, night after night after night. This was a similar rash to what is known to those who work inside the ship as "Knee-Knocker Rash". This you get from not clearing the many bulkhead cutouts in the passageways.