Posted 6/2/2009 22:35 (#730877 - in reply to #730840) Subject: I bet this would work.
Hagen Brothers farms,Goodrich ND
I have seen these little devices advertised in catalogs for years to keep long distance drivers alert.
You wear it like a "behind the ear" hearing aid, it has a mercury tip switch that beeps in your ear about the time your chin meets your chest.