There are many dropped connections a day evidently, all within the same range. I checked the log reference guide on what the rules were, but it doesn't offer much. The only rule categories listed were in reference to blocked Webs/FTPs/Gophers/Newsgroups, so I don't know if there's any relation to TCP droppings. That said, category 12 is Alcohol & Tobacco. It says nothing about a rule or category 0.