Reminds me of a story from my grad school days. I was helping one of the other grad students that was doing a live trapping study of small mammals in a couple of different ecosystems. To mark the animals we would clip off a toe starting with the pinky toe on the left fore paw, then the next toe to the right, etc for each new animal. That way we could recognize the ones that have been captured previously and we could estimate the population from the number caught vs the number recaptured.
For the mice and shrews we would just hold them by the scruff of the neck while we clipped that toe. For chipmunks we would put them in a ziploc bag (not fully closed). I would grab its tail and secure the head before cutting a small hole in the bag to pull out a foot for toe clipping. Compared to the mice those guys were wild and much larger. One of them tore its way out of the bag before we could clip it's toe. The researcher was distraught since we might not be able to id that same animal if it was recaptured. I said that she didn't need to worry since I was still holding it tail in the bag 😅😉. I did end up catching that guy at least one more time that summer. We did have a juvenile white-footed mouse that after he gave up the toe, we would catch him again each week of the study. One time we let him go and soon after heard another trap shut. We got over to that trap and there he was holding and eating a piece of oat meal with his little toe stump for us to see.
We wanted to minimize the possible time in the traps. We would set them in the evening and then check them at first light. Most of the time we did not use a flashlight. There were a number of bears in the area and we found an active bear wallow and trails close to her study area. Often times in the morning there would be a thick fog. When we would get near the area with the bear wallow, there was a doe that would wait and blow just as we got there. She did that many times and we responded with a startled response everytime she did 🙄. I swear she did it just to get our response.