Administering a proper paddling [I Had To Use The Paddle Again]

My 18 year old son was talking to a friend of his about smoking marijuana last night over at his friends home last night not realizing I was standing outside his door listening. As soon as he was done talking I opened his bedroom door and instructed him to come to my bedroom and then I told him to explain to me why he was smoking marijuana and for how long which I believe he was honest with me and finally I told him that there has to be consequences to his actions especially since marijuana is illegal and told him to stand up and to take down his jeans and underwear and bend over a straight back chair we keep in my wives and my bedroom and I went to my closet to get a wood paddle with holes and administered ten good swats to his bottom and upper legs real fast and then another five swats pausing in between each one asking him questions like if he was ever going to smoke again and I believe that his paddling will make him think next time he’s at a friends and they are smoking.