Peda… pedo…

My son (10) hears about a case of pedophilia in the news.
Walter: ‘It’s a superimportant topic!!! Once I also tried to raise this at school, but the teacher wouldn’t talk about it!!!’
Me: ‘… Ehm… yes, I remember the case.. By the way, have you ever tried to bring this topic up in a way different from opening the discussion with the joke ‘What’s the difference between a pedophile and a teacher?’’