On Sat, 28 Jan 2012 22:29:31 -0700, Doug Winterburn
wrote:

I can imagine some type of beam of light that recognizes tissue and
disengages the saw when that beam is broken. Something will appear, I
have no doubt.

Sounds like a job for Red Green.

No, I think MacGyver is the man for this job. Give him a piece of
string and a bottle top and in three minutes. Voilà! Gass is out of
business.