Kristen Bell was in for quite a surprise on her 31st birthday when her boyfriend, actor Dax Shepard, gave her a present so big that she had a full-fledged panic attack. So what was all the fuss over? Well, knowing all about her strange obsession with sloths, Shepard decided to bring one home for her to meet, complete with a jungle-gym habitat. Before even meeting the animal, Bell knew what was about to happen. "I immediately was overcome and I thought, 'There's a sloth near. There is a sloth here, it's close, it's gonna happen,'" the Big Miracle actress said when she recently appeared on The Ellen Degeneres Show. She goes on to explain how when Shepard went into the room to check on her, he found her curled up on the bed in the fetal position sobbing, all because she was so excited about meeting her new fuzzy friend. Bell even brought footage of her meltdown, which Shephard managed to catch on his handheld camera. Watch her reaction in the hilarious video below.