Well, if the point is to rock his boat a bit, that won't work. I think he attends regularly, it's just that his church is convince Jesus was a Liberal.
I don't read his letters, but then my wife says "Oh, no, not again!" and, of course, I have to see what he said this year. Always ticks me off, which is the intent I imagine.
Tell him yes, Jesus wants the church to provide charity, but if one does not work, then neither shall he eat.