Consider this: One out of every four car accidents in the U.S. is caused by texting when driving. Texting while driving is now the leading cause of teen deaths. The problem is prevalent anywhere on the planet that has cell phones and distracted drivers, as is evident by this print ad created by F.Biz in Sao Paulo, Brazil. This skid marks public service message wasn’t done by a car manufacturer or the highway patrol; it was sponsored by mobile-phone maker, Motorola.