[redfloatplane]

Can you elaborate? I could do with some free drinks…

[awakeasleep]

http://www.snopes.com/science/saltwater.asp

It says false at the top, but goes on to explain it did actually work for a period of time, by shorting out the mechanism.

One kid was even electrocuted when he tried it on an ungrounded machine!

[csytan]

Not sure, but I've heard that salt water triggered the coin detection mechanism in old soda machines.