Up high. Down low. Too blind!
In his defense, hosting seems like a really hard job. If that were me I'd probably get really embarrassed and softly high-five his face as a joke. It could have been worse, though. He could have told a paraplegic to "stand up".
He practically yells it at him. "Stand up, Chuck! Let em' see
how paralyzed from the waist down you are!"
If I were Chuck I'd have purposefully fallen out of my chair and rolled off the stage. Then sued.