A friend has a couple of those Manitou Telehandlers. Not sure how a dog could press the pedal. It should not move just by moving the shuttle leaver. The center position is not a PARK position.
Sad accident. Poor guy didn't wake up that morning figuring he was going to die!
Often, I could leave my utility vehicles so you just hop in and press the pedal, but instead make sure I put on the E-Brake, thinking of the cats!