My nan is in her 90s and on the dementia ward of a care home. She no longer recognises me, and has become very withdrawn so when I do visit she doesn't talk much. She used to like to have her nails done so I thought I could do this for her when I visit next. She has very fragile skin which tears easily so I'm not sure what's best to use - clippers or emery boards - but her nails do need to be trimmed. She's not very cooperative with staff and being bathed etc so I think that's why they've gotten quite long. What would be best to use, assuming she's happy for me to do this for her. Any tips welcomed! Thank you!