I hope he's doing OK. I haven't spoken to Charlie for a while, but in the past he's explained to me how his work goes. As with all construction, it's feast or famine and Charlie never turns a job down. When he's busy he might have several jobs going at once and he'll put in VERY long days (and nights) for weeks with no break. Charlie told me when he's busy like that he won't even read email for weeks at a time. Workaholic for sure.
Charlie was out for a long period medically a few years back when he was kicked by his horse and it (literally) about killed him.