"The Monty Hall Paradox is a veridical paradox in that the result appears absurd but is demonstrably true."
I wrote this piece of code to demonstrate that the laws of probability change drastically by simply setting the "@vSwitch_Door_Picked" variable from 1 to 0 or 0 to 1.
More detailed information on this paradox can be found on Wikipedia: http://en.wikipedia.org/wiki/Monty_Hall_problem
The code is just for fun and makes for an interesting conversation piece at best. Give it a try and enjoy!