No.  I used a Shandon Finesse for a year.  The foot switch deactivates
automatically after a short time of sitting idle and must be turned back on
with a push of a button.  If I recall correctly, the maximum time it could be
set for was three minutes.  The pedal is also in a box, requiring a conscious
effort to put one's foot in and press the pedal.  As with a manual microtome,
I think accidental injuries are due to putting one's fingers in the wrong
place at the wrong time.  

I did manage to break the end of my brush off, though....   :-)

Dave Reynolds, HT(ASCP)