Growing up isn't always fun in real life, but in the world of "FoxTrot," it's always worth a laugh. Between overblown science experiments, babysitting jobs from hell, and sibling rivalry honed to an art form, the Fox household reverberates the sounds of a far-out, yet familiar, family life.One of "FoxTrot"'s great appeals is its understanding of the pains and pleasures of youth. The Fox kids-little brother Jason, the mischievous genius; sister Paige, the boy-crazy shopping fanatic; and big brother Peter, a sports fan with aspirations to be a sports star-interact naturally, which is to say loudly and vigorously. In addition, creator Bill Amend uses many real-life situations and dilemmas modern kids face to frame his stories. "It's a tricky balance," says the artist. "On one hand I have this wonderful opportunity to present good role models to younger readers, but at the same time I want to be funny." And he succeeds. In "At Least This Place Sells T-Shirts," parents Andy and Roger continue to preside over the unpredictable household antics of the Fox family.