I see your point, but to me, that once again signifies the ineptness of the teacher to deal with special needs students. In the case you’re describing it’s just different kind of special needs.

Mind you, it’s kids we’re talking about. Without guidance, they’ll be doing what they do.

Sure, the influence can be limited, but straight up blaming kids for things like that is, at best, unprofessional. You’re at least supposed to try working with them on the issue.