Instant Index: The Great Escape Out of a Bathroom at Work Woman Digs Her Way Out of Office Bathroom After getting stuck in an office bathroom Friday night, Karen Perrin used a 3-foot-long rod to chisel her way through the wall. After two hours, layer by layer, through dry wall and insulation, she finally broke through and created a large enough hole to fit her arm. Obama, Bush, Clinton Ride Air Force One On the flight returning from Nelson Mandela's memorial in South Africa, former President Bush used his iPad to show off his paintings to President Obama. Former Secretary of State Hillary Clinton looked impressed at the presidential Show and Tell. Yellowstone Hot Springs Warmed by Underground Molten Rock Today, a University of Utah researcher told ABC News that Yellowstone's underground lake of lava, which warms the hot springs and Old Faithful geyser, may be 2.5 times bigger than originally thought. There is enough molten rock under Yellowstone to fill the entire Grand Canyon. If this super volcano erupted, the ash would cover most of the US.