On the New Heights podcast, Donna Kelce revealed how she was constantly afraid of Travis running off, forcing her to put him in a harness. Everyone knows that Travis Kelce is athletic. He wouldn’t be a Kansas City Chiefs’ tight end if he couldn’t. But it looks like his sporty side may have begun when he was a kid, when he liked to run away from his parents a lot. Away from the pitch, he co-hosts the New Heights podcast, alongside his brother Jason Kelce, and in an unearthed clip shared to their social media page, the football brothers were joined by their mom, and she had some fun stories abou…