Max cannot zip his purse. Justin announces, “I will teach him.” As Justin starts to zip his own purse he tells Max, “Now watch this. I can do it. Hold on the bag and pull.” The zipper moves and opens the bag. Justin looks over at Max, “And then it works.” Max claims he can’t do it, so Justin gives him another lesson and says, “I’ll show you how to do it. Give me the bag, and I’ll show you how to do it.” When Justin struggles, Max says, “It’s hard.” Justin un-weights the bag using the table, and finally the bag closes. Justin says, “See.” He hands the bag to Max. “There, I did it.”