Yes, PM has an on/off switch. My DD7 got her PM in December. He goes everywhere with her. I have to make her leave him at home when she goes to school.
We took him back last week to WDW. When you walk into a park make sure PM's nose in pointed straight ahead. This helps update him from the last visit.
When we were in line for Splash Mountain he asked if we were sure we wanted to ride. Then he said to put him somewhere that would keep him dry!
At the Haunted Mansion he said that he was scared!
Lori