I've had it with the reports of trouble at work with his attitude. I told him when he got home he was getting a spanking, and that he wouldn't sit for a week. And that's exactly what he got. Strap and thick wooden paddle, no warmup - as always - and a good solid spanking that got him dancing like a 10-yr old getting the belt. (but belts are too ineffective for a big-boy backside, so we use a thick doubled-up strap).