Paging Mama Bear, and an Ethics Question

Today while I was getting in the car to meet Mike to come and teach, a 13 year old boy hit a baseball that hit my garage door and almost hit Jack in the head. (We live across the street from a little league baseball field). I was so angry, I went to give him a piece of my mind, and he actually said that it is a baseball park. Oh my gosh. I almost called the police I was so angry. My goal is to get signs up saying the park is for children and their coaches 10 and under. I am going to hire an attorney because I have had to confront grown men hitting balls at our house! I know I channeled my inner mama bear, but good grief. All I could think about was how Jack has been hit in the head before. I am seriously hoping he will be a band guy and play the drums or something. I never knew parenting was field with such emotion!
And, here is an ethics question I faced tonight. I have a student who had a baby. We have been told not to allow children in the classrooms for many reasons, among them liability reasons. The studen with the sick new baby wanted to come into the computer lab where we were working and type while her son slept. I told her we weren't allowed to do this, and I could loose my job. I did direct her to the open computer lab, so they could make the call. I have to admit, I felt like I was part of a program of oppression. And, at the same time, I was angry that she wasn't devoting all of her attention to her sick infant son who is only a month old. Then again, how will she ever get ahead in such a situation. What do you guys think? Ironically, my students are right now typing an essay agreeing or disagreeing with a 50 dollartuition hike to provide a on site child care for parents trying to get ahead. (I made this up before the problem tonight.)