Rick don't feel that you are obligated that's why us employers take out Work cover insurance to cover event like this. Your well being is foremost, years down the track if you have ongoing issues as a rwsult of this injury, your boss isn't going to stand by you is he.
He's probably worrying that a claim may raise next years premium. tough.
I know of a couple of incidents where employees were hurt and the bosses tried to cover it up
One a guy had the top of his head ripped off by an aircraft propeller and the boss tried to make out he did it deliberately to himself.
Another had his leg caught in a professional fishing trawl net and got dragged overboard, his boss tried to blame the employee.
Some bosses can be ******, don't be bullied into feeling obligated to work if you are unfit to do it

