I worked as a teacher in a black-hat yeshiva this school year. I’d like to think I impacted my students. Some kids were on the worldly side and definitely were at-risk, and used my class as an opportunity to “show” this off, which resulted in my calling such students’ homes and sending such students to the rosh yeshiva.
I was previously a paraprofessional in yeshivos, and tried to help those kids, also. I had one case where the bachur was emotionally abused, and I went through the proper channels to help him.