If a caller goes into lots of detail about what you will be wearing, what you will do during the appointment and so on on the phone, he's almost certainly a timewaster looking for wank fodder.
This section is for persistent timewasters (including phone pests, general nuisances or those who send abusive texts and so on) and if everybody posted about every silly phone call or one-off no show they'd ever had it would be a thousand pages long. Please think about whether somebody's behaviour actually merits a thread in section before posting. This one does not.