2. Thinking you can't get drunk at a sporting event
Some 8 percent of sports fans are legally drunk when they leave games, according to a University of Minnesota study published last month.
The results were based on breathalyzer exams given to 362 adults after 13 baseball games and three football games. Tailgaters who imbibe, to no surprise, were 14 times more likely to get sloshed than those who skipped the tailgate.