A student in Denmark shared much more about his high school experience with his family and friends than he anticipated last week, when a videotape of him having sex was played during his school’s graduation festivities.

The X-rated clip of the student having sex with a woman began to play in a video presentation celebrating the graduates of the Gammel Hellerup Gymnasium school near Copenhagen, shocking the 400 to 500 people in the crowd.

“It started with some pictures of them and you thought it was fun. But it then turned into a sex video,” a student told Danish website Politiken. “Everyone was shocked – but no-one turned it off. It was clearly too much and the 30 seconds the film lasted, felt a very long time."