Yee-haw! Ride 'em cowboy! There's James working like an ox with Paul applying the plow. Literally. He's doing a slowplow, the skater's version of the snowplow. By turning his heels outward and applying pressure, he's creating friction-generating stopping power. That means James has to blow up his cheeks with effort to pull Paul along. This is resistance training at its best. Guaranteed to put your heart in your throat if you're pulling. Good for laughs if you're being pulled. Now who'd you rather be?