Manual labor which was so grueling that he had sue his company in order to retire early because he could literally no longer walk and required surgery to remove the extreme bowing in his legs.
You could come in, look at the latest Creosote burns on his skin, and tell him that something-- anything! --would be better than watching an hour of Football.
And, while you're at it, you could try to convince him that smoking's bad too.
Also, he should probably quit smoking (unclear if it's too late for that, if so I'm sorry)
Sorry! I wasn't in a great place when I wrote my reply last night. I'd delete it if I could.