GLAD TO BE FIT: Brea firefighter Kathy...

GLAD TO BE FIT: Brea firefighter Kathy Mollica, 27, above, says she owes a lot to physical fitness. “It got me to college, it got me my great job and it got me my new house.” . . . Knowing she was a physical fitness buff, her boss at the Fire Department dared her to try out for TV’s “American Gladiators.” . . . Result: She’s already won $10,000 plus a Club Med vacation, and tonight she’s in the grand finals (KCAL Channel 9, 10 p.m.)