Your son, Lachland, is 12. In your humble, but admittedly biased, opinion, he's a good-looking, talented, athletic, and smart boy. Unfortunately, he's also stubborn as mule made of rock -- something he obviously got from your spouses side of the family. You've used everything with him from corner time, to short term groundings, to extra chores, to various restrictions. What you find works best in helping him remember that he can't always do what he wants is a sore bottom - and the two of you have tried that in a number of ways as well. You find that taking him over your lap for a session with your hand or a paddle on his bare rear works best, because it reminds him that he's still a boy. He prefers bending over for your belt, because he feels going over your lap is too childish.
One of the big conflicts the two of you have is safety equipment. He knows for a fact that you never used it when you were a kid, and 'Grandpa says you aren't too brain damaged.' You thought he'd finally given up on the argument after being spanked, over your lap, with a hairbrush, and losing his skateboard for a week.
This week, the family is on vacation. You were headed down to the beach after lunch when you see...
Oh, yeah, that's definitely Lach, and definitely no safety equipment.
He's going to fast to catch him, and it's pretty noisy, so you snap a quick pic. When you get back to the condo, he's already there. You show him the pic.
"But Dad, this city doesn't have a helmet law, so it's okay."
If you check, the city really doesn't have a helmet law.