If I see someone littering or spraying graffiti, is it okay to bonk them on the head?

We hear you, and we’d love to do the same! But we think it’s best to avoid that kind of confrontation. We suggest that you politely and diplomatically inform the person that what they are doing is illegal and explain to them why it is harmful to the waterfall environment. Use it as a teaching moment. The person may feel like bonking you on the head, but at least you will have taken the high road. It’s important to understand that being waterfall adopters doesn’t give us any privilege or authority. If you witness egregious activity, you should report it to the proper authorities.