Justin Tognarine, a North Side resident and the director of team and community engagement at the Carnegie Science Center, watches as a bean bag thrown by Luciana Passerrello, 7, of Sewickley, just misses a target that would spill slime on him as part of the Carnegie Science Center’s Mess Fest on Sunday, August 22, 2021, at the Science Center on the North Shore. Anyone who answered a science question correctly could throw a bean bag at a target to try to dunk Tognarine. (Emily Matthews/Post-Gazette)