This week, Daniel and Nicole Kaufman from Los Angeles, California, and their two adult children/roommates, Tucker and Cody, show off their upside-down-baseball-catching, tug-of-war-rope-pulling, slingshot-fire-extinguishing skills in challenges “Don’t Play Ball in the House,” “Don’t Play with Matches,” Don’t Budge,” “Don’t Lose Your Grip” and “Don’t Stop.”