YOUR QUESTIONS: And do you not consider the consequences of children who put their trust in you and see you as a responsible adult that they can confide in stumbling across your online material? Would it not erode your authority in class?

I have sex. I masturbate. I have no problem with anyone KNOWING this or even if they happened to see it. Both acts are totally natural. If you are ashamed or embarrassed, the problem is yours, not mine. Welcome to being a human. Try to embrace it, not fight it.