I stuck my finger in a regular fan, you know like 12 inch and it was pretty bad. There was a layer of skin that came off, strangeky there is no scar, my bro scared me and told me I was gonna need stitches, wasnt that bad. This was an accident, I thought it was going to fall and I grabbed it, it fell and my finger was in it, it was one of the older ones with the wider bars, I was scared to use fans for like the rest of the summer. 🙁