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.