"Obviously prions are a laboratory hazard, but they're one we've lived with 
for a long time, and as far as I know there is still no known case of 
Creutzfeldt-Jakob disease resulting from exposure to pathology specimens."....Bob Richmond, Samuri Pathologist

I have only this to respond with.....
"Absence of evidence is NOT evidence of absence."
Sorry, but I can't remember where I read this quote.

However, I do agree with the point made about the handling of additional, rather hazardous chemicals by potentially less than consciencious personnel.  I've worked with some real slobs in years past and I certainly wouldn't want them doing a decomtamination with formic acid or NaOH.

Carrie Kyle-Byrne, HT
UCDavis-CAHFS