Postal carriers and dogs have a long-standing relationship that often ends with a bite. The U.S. Postal Service is out with its list of the top major cities for dog bites, and Los Angeles is number one. 65 mail carriers were bitten last year. That's nine more bites than the second city on the list, Houston. Rounding out the top five are Chicago, St. Louis, and Cleveland. There are four major cities tied for number 20 on the list. Long Beach, Tulsa, Portland, and Detroit each reported 19 bites last year.