I would 2nd Matt's comment, as i've access to an EKG monitor, and have experimented with
<ahem> 'external influence'
[disclaimer]do NOT try this at home[/disclaimer]
p.s.---condolenses to the cow.....
p.p.s----good to see some'discussion' in the 'safety discussion' section here......
[This message has been edited by sparky (edited 08-01-2002).]