So, Mayor Nutter has a new Philadelphia Fun Safe Summer PSA out. He says that the city is offering more than 15,000 different ways to keep young people busy as, “the days get warmer and fun will be heating up all over Philadelphia.” They can go to the pool, read books, play sports or twiddle their thumbs. They should have just titled the PSA, “Please, Please Don’t Flash Mob (Seriously, Please Don’t—It’s Totally Uncool).”