that is a 75-pound bear cub that ran through the glass door at the ogdensburg, new jersey, elementary school. after he smashed through the glass, he said, oh, let me go out this door. couldn't get out the door, so he decided to run through the hallway. and that's when the custodian stepped in and started chasing him like you see here. >> i started to chase it down the hallway. and then it decides to go into a classroom. >> inside the classroom was a teacher. >> the next thing you know, you see this little black bear come skidding into the room. so i get up and go, get out! we walked out, closed the door. >> the poor little guy had to be terrified. he was trying to find a way out. >> he just wanted to study math because the teacher said once he got into the classroom he tore up the math book. he wanted to do a little calcul calculus. >> he stayed until police came, opened the window and let him climb out. >> here's the funny story. guess what their mascot is. >> da bears. >> it's in new jersey. they say residents walk around with bear horns because they're used to seeing bears walk aro