Jack was a huge fan of letting people experience their mistakes to the fullest. How else were they ever to learn? He watched Charles for a moment before the pain crested to levels no one should experience before he put his hand against his arm and drew him into a shop. It wasn't exactly quiet or I crowded but it was darker and less red and contained. That was an important thing for a telepath.

"Charles, look at me. There you go," he said soothingly as he moved his hand to Charles' neck, thumb brushing his jaw. If the voices didn't stop, Jack had a backup waiting on the balls of his feet. One lean forward and a bit down would connect their lips and Jack's life force was intense enough to give way to some transference of energy. It ought to be more than enough to give Charles the boost to keep his barriers up if he couldn't do it himself.