Temperatures overnight Friday into early Saturday morning were a bit on the chilly side. For several dozen students camped out on the Escalon High School football field, it provided a bit of an awakening. The students, from EHS and several other schools in San Joaquin County and the surrounding area, settled in for a night of simulating homelessness, constructing shelters out of cardboard boxes, bringing in sleeping bags and blankets for a campout with a purpose.