I have one 15 mos old who seems to always have long nails and the worst part is, she's a swatter! I will tell the parents when they need to be clipped and they do it but they also need to file them as she will be left with jagged/sharp edges. I am at the point now where I will have to tell them her nails need to be kept short and filed in order to come back in as it's becoming a bit of a liability for me. She is always swatting some kid in/near the face and I don't want to deal with a serious eye injury.