In this video clip, two five-year-old boys work to make a length of string taut, from the table to the floor, so imaginary animals can safely slide down into the water. At 00:30, Henry (in green) successfully anchors the string to the floor with a piece of tape, and the string is now taut. In an action meant to help Henry, Wesley accidentally separates the string from its mooring. Wesley explains, “I was going to press it down,” meaning that the separation was not at all his intent. Henry wants Wesley to understand his perspective, so he says, with some despair in his voice, “I did some really hard work.”