USC and UCLA may have shared the Coliseum for decades, but the Bruins moved out 25 years ago. However, the prospect that the teams might once again become roommates -- this time at the Rose Bowl -- worries fans on both sides. "I heard about it, and I almost fell off the chair," retired USC professor and season ticket holder Peter Dyck of La Ca?ada Flintridge said Wednesday as he walked around the Rose Bowl. Nearby, UCLA fan Nancy Loder, dressed head to foot in blue and gold, also dismissed the idea. "That's why UCLA left," said Loder, 50, of Tarzana. "We didn't want to be near them." USC officials, frustrated by stalled negotiations to renovate the Coliseum, say they are considering relocating games to the Rose Bowl beginning next season.