"One night, I'm in there, I sing them 'Wheels on the Bus,' everything's good, they're going to sleep," Shepard told DeGeneres, referring to his two daughters. "I go to bend down to pick up the towel to put it under the door [to block outside light], and they have a bookshelf … I bend down, wham, straight into the bridge of my nose. Hardest I've ever been hit, and I almost blacked out. I let a couple 'motherfuckers' rip, 'cause I've lost count of where I'm at. I feel like I'm in an alley or something."