The 5 second rule does apply to soup. If a small amount is spilled then no worries, just quickly lick it up in 5 seconds. If a large amount was spilled, drink as much as you can in 5 seconds. However if you are punk and don't follow rules, just enjoy your soup whether it is in a bowl or other surface.
haha. I was eating at the barn the other day, food fell in s***, no five second rule for me earsofjoy:
1. Make sure the soup is stationary. 2. Be wary whilst licking any bit of the soup that has no contact with the floor. 3. Wash your damn mess!