If a human was naked, the main problem would be the hair getting stuck, because that’s how they are designed to catch mice. I have seen nothing but hair and poop left on one, so a mouse can rip itself out, and I imagine, if a human got their head stuck on one, they too would have to rip the hair out of their scalp to escape, and possibly leave behind some poop as well. Similarly, insects get stuck due to the very fine, hair like structures on their feet designed for climbing, this is also the reason reptiles scales get stuck, because of the fine crevices between their scales.