Hi,
    It's always fun to see how ridiciules you can get in situations like
this. So I think you should ask them to consider the source of biohazardous
material ... patients! So patients should not be allowed in doctor's offices
of in the waiting rooms (carpets and all). In fact I have even seen patients
in cafeterias.
    Realistically this is just part of the job. A pathologist deals with
pathology specimens. It's the nature of the beast. If they were grossing at
their desk, then I can understand the fuss, but this ... it'