How do you keep the picade cabinet from moving around?

The cabinet is so light that it shifts around and sometimes even tips back a bit when being slightly aggressive with the stick. What does everyone here do to prevent the picade from shifting and rocking during play?

dont have a picade ,but for similar issues, i use a dinner table placemat with a rubbery under side to keep your plate from sliding off the other side of the table when your in the middle of a big chow down :) like these

Thanks for the idea! I got a square mousepad with a grippy rubber bottom, and that kept the picade from rocking. Problem solved.