Mate he continued to employ the young blokes ,even when they had a number of sickies, and the final straw came when he had a whack of orders to complete, and the young bloke rang in for another sickie.
He may have been tough(There are ruthless owners), I don't know ,but if you are learning a job ,you pay attention to the person's instruction, he's not there to pamper you like a baby. If he was such a bast*rd, they would have left earlier.He was the one with the patience to continue employing them.
I've had tough people at times in more senior roles, you live with it.The world is a tough place, we are not entitled, but have to earn our keep.
Butchering I'd imagine, is not an easy job, but how many jobs when you are new to it ,are easy.