For a bit, The Amazing Race finale seemed like a two-team race between eventual winners Rachel and Dave, and Brendon and Rachel. But then the Big Brother duo took a cab instead of going on foot to a helicopter. "That was awful," Rachel tells TVGuide.com. "It was the $1 million mistake that you don't want to make. If it was any other leg, it wouldn't have been that bad because those are about survival; the goal is to win on the final leg." The pair finished in third, but not before having another one of their notorious meltdown fights. Where there more meltdowns that we didn't see? Find out below. Plus: Get their side of their feud with Vanessa and Ralph.