The Mysterious Moving Cat Carrier

This morning, Mom woke up, got out of bed, and found that my cat carrier was sitting in the middle of the living room floor, upside down.  She assumed I had just turned it over, until Nehad, the smart one, suggested that I had taken it out for a drive, and done a really bad job of parking.  Obviously I have to go out in the wee a.m. hours, because I don't have a drivers' license or liability insurance. 
 
Mom thinks I was driving under the influence of catnip, but she can't prove it.