Caleb Williams responded to a fan who rushed up to him on the field following USC's 48-20 loss to Notre Dame last Saturday.
The Fighting Irish fan chastised Williams' tradition of painting his nails before every game, a routine that the 21-year-old has embraced since high school.
Speaking to reporters on Wednesday, the signal-caller responded (via Shehan Jeyarajah of CBS Sports).
"I'm not worried about some kid running on the field that doesn't have anything really associated to Notre Dame other than possibly their family going there or him going there himself," Williams said.