You may want to think twice before placing that next Amazon order. The U.S. Postal Service released its annual dog attack findings last week as part of the lead up to National Dog Bite Prevention Week (running now through April 15th.) It revealed there were 6,755 dog attacks reported by mail carriers in 2016, an increase of 206 from 2015. Los Angeles mail carriers were more likely than those in other cities to face an attack last year, with 80 reported incidents. Houston carriers reported 62 attacks, Cleveland came in third with 60, San Diego reported 57, and Louisville carriers were attacked 51 times. The Associated Press points out that an increase in online shopping may be to blame, as it means mail carriers have more packages to deliver on more days of the week, upping their chances of being attacked by a dog.