Caller wanted me to be home on Monday to receive "legal documents" related to a supposed overdue account.  They claimed I could avoid legal charges if I paid them immediately.  Right.  I asked for details of the supposed debt and they claimed that they were a collection agency that had assumed the debt from a credit card company I had never heard of.  When I asked them to stop calling me the caller became very abusive and started shouting at me when I asked that they never call again.  She threatened to call me every day until I paid the debt.