One of our dogs had a bad habit of jumping onto the driver's seat and putting her front paws on top of all of the switches that were just below the side window-including the brake release knob. Stuck a clothes pin just underneath the brake release pin which prevented it from being depressed; also found a long, rectangular odds & ends type of bowl that, when placed upside down, fit nicely over all of the switches and prevented the dog from being able to depress any of them. Of course, it didn't stop the dog from jumping up and hitting one of our propane stove dials in the middle of the night one night, turning on the propane and just about gassing us... but, alas I digress.