STOCKTON — Cristela Alonzo enjoys telling stories that not only make her audiences laugh, but think, as well.Using that approach Friday afternoon in Stockton, Alonzo told how her late mother, an undocumented immigrant in southwest Texas, would become frightened whenever she saw people wearing uniforms.“I did a joke in my last stand-up special about how my mother was terrified of Girl Scouts because she thought they were Border Patrol members in training, [...]