Trouble with the 9th graders already!

I have a parent meeting tomorrow after school.  Three days into the new year and already have a parent meeting.  Geez.  Had a student flip his chair over yesterday (very loudly).  He didn't get up, so I went over and asked if he was alright.  He said he was fine.  I told him to get up and he said he would just lay there.  I asked him if he was really alright.  He said yes, he was fine.  I told him he had to get up. (He was lying spread eagle behind three other students sitting in office chairs on wheels.  His fingertips just inches from their wheels.  He finally sat up, but didn't get off the floor.  Realizing that this class was too big to risk a lot of our fun experiments on due to safety, I told them that right now they have a yellow flag.  That if they walk into class one day and there are books on the desks, I didn't want to hear a bunch of whining and complaining, because I had to consider everyone's safety.  Apparently, this embarrassed the student and his mom needs to discuss it.  Wow.  Really?  Of course it embarrassed the student.  The fall was so loud it scared the entire classroom.  Everyone stared at him and some giggled nervously.  Oh well. Another year.  On the good side, he was an angel today. Tomorrow, we break out the microscopes and they will look at cork and thread under them.  So, here's to hoping nothing gets broken and no one gets hurt tomorrow. Say a prayer.