Again, I'm looking at a technical "option" for a panic button. There are many factors involved in determining what the best solution is. I personally agree with you that a physical button is most appropriate in my scenario, but again, I was tasked with analyzing the feasibility of a computer based solution. The final analysis will include the pros and cons of each option.

Thanks for your comments.
_________________________
let the wise listen and add to their learning,
and let the discerning get guidance- Proverbs 1:5