I got two uncles who r master carpenters, and the older of the two just gave up his company after getting a job as a foreman.. he would have entire weeks where he was useless because parts of his body wouldn't work right... the younger brother isn't too far behind...
They will both need a couple surgies on their legs and hips to keep them going soon..
It's hard work. I couldn't give my body up for a job like they did