Here's a look at the stories that are keeping our reporters busy Tuesday: * A father and son are charged with stiffing customers who went to them for car repairs. * Two costumed men assault a woman on the university campus, and officials urge students to be careful. See our breaking news report. * A stretch of sidewalk will be closed in one downtown during the holiday shopping season. * A first-grader gets a big surprise when his military dad walks into his classroom. * Crews battles a fast-spreading mountaintop fire. We'll have the pictures. Look for these stories and more in tomorrow's edition of the Press Enterprise.