Brad,
That's a good question. Experience would tend to go with total lack of 
alcohol, but that's no fun, so I would have to guess that at least one bottle 
per person prior to firing the first shot. Then it comes down to distance, 
aim and who can stand to wait until they have a clear shot without panicking. 
I would think that at least a ten knot wind would be required to make it 
interesting. Anything above fifteen knots would certainly rule out any skill 
being involved. Now, this is where it gets interesting, because when dumb 
luck is involved, I got me a guardian angel. I WIN.......you sink from at 
least two broadside shots....direct hits.......dismast the boat and glurg, 
glurg, glurg......so much for positive flotation.

Rummy......Go Packers.