Lecturing and Spanking?

So last week, I finally let my submissive playboy toy come to the campus for a visit. He's in his early twenties but acts like he’s still a college freshman sometimes, totally irresponsible and all over the place. We sat down in the study room on campus grounds, which was empty that afternoon. I decided to give him a little lesson, you know, how to manage his time better and take responsibility for his actions. It quickly turned into a mock lecture with me scolding him like an old-fashioned headmaster would, complete with red-faced embarrassment and fake tears rolling down his cheeks. And yes, there was a playful spanking at the end, nothing rough or abusive, mind you. Just enough to make my point clear in that private little space between us. We both laughed about it afterward over some coffee. Now here’s where I need advice: is this normal? Do other people ever do such things with their submissives on campus grounds? Would love to hear if anyone else has stories like mine.