You are totally right what info could leak a files named:
ClinicWhereTheyReattachYourJunkWhenItFallsOff_procedureOverview.txt, ClinicWhereTheyReattachYourJunkWhenItFallsOff_invoice.pdf and ClinicWhereTheyReattachYourJunkWhenItFallsOff_WhatWentWrongWithYourJunkBeGratefulYouHadTheChanceToSayGoodbye.rtf ..
It's the old debate on the fact that filenames might be kinda sensitive.