10/30/2007 at 04:00 PM EDT
says she accidentally remodeled her house – by crashing into it.
"I really did drive into my house," the actress, 42, tells Extra
when it caught up with her at a New York event to announce her extended partnership with Tupperware's Chain of Confidence, a campaign that encourages women and young girls to celebrate the bonds of female friendships and the confidence that instills.
"I was wearing these fabulous sort of kick-ass platform patent leather [heels]," Shields said of her incident. "I was meeting the team at [her upcoming, midseason TV show] Lipstick Jungle
[and] I was all sexed out."
Letting out a laugh, she added, "I slowed down to what I thought was a proper speed. ... I went to go put my foot on the brake, and I couldn't get my foot off the gas because the wedge was completely wedged under."
Then came the tricky moment: "I slammed on what I thought was the brake, and it actually was the gas!"
A pillar ended up damaged. "I was fine," says Shields. "The pillar, of course, was removed – at which point I was like, we didn't really need that, that's just in the way."