The final comment "When I grow up, I want to be a policeman" always seemed like something they tacked on at the end...like they wanted 5 additional seconds for the clip. The filmed footage during that comment doesn't match what they were doing before either. It looks like the camera crew just filmed whatever class was scheduled next in that dance studio. "Eh, just get a shot of them doing cartwheels or something, Charlie. After lunch, we'll get more zoo animal shots for that Joe Raposo thing..."
I saw this clip when I was really little and when they came to the part where the kids were holding their stomachs and going "Uh-oh, uh-oh, uh-oh!", I half expected one of them to blurt out "SpaghettiO's!" (old commercial reference).