Dr. Teeth: Uh oh! It's the cops! The fuzz! The P-I-
Piggie: DON'T YOU SAY IT!
Dr. Teeth: Never even crossed my mind!
In the scene when Kermit confronts Doc Hopper he comes walking out of the bar. If you look at the top of Kermit's legs when he walks out, two pair of hands can be seen moving the legs.