Geelong woman Sara Purtill was a passionate artist, but she says three years as a residential care worker at homes run by MacKillop Family Services has destroyed her creativity. During her time working with some of the state’s most vulnerable and damaged children in the Barwon region she said she was threatened with knives, locked in her office as two children tried to set fire to the unit, and is now unable to work due to crippling post-traumatic stress disorder.