We have to be mindful that the film we are using is extremely photosensitive. When we are in the spooling dark room, it’s very important to remember to carry all our materials with us before beginning to wind the film onto the spool. Even a sliver of light entering the room can affect your film and ruin whatever parts of film the light touches; even if it’s not direct light.
Hopefully this will be a mistake we learn from, troops! 😀